Wacnem Citronella Bark Collar Review (2-Pack)

Intro — why I tried the Wacnem citronella bark collar

I test and live with a lot of pet gear, and I’m picky about anything that intervenes in a dog’s behavior. I picked up the Wacnem Citronella Bark Collar 2‑pack (model S21B) because it’s a non‑shock, spray‑based approach to stopping nuisance barking and it ships as a two‑collar set — handy for multi‑dog homes or for keeping a spare on hand. On paper it promises adjustable sensitivity and spray volume, IP67 water resistance, and rechargeable power, and the listing is upfront that the spray cartridge is not included. I wanted to see how it actually performs in daily life: fit, false triggers, comfort, safety limits, and whether the two collars provide real value for a multi‑dog household.

What it is — first look and the essentials

The Wacnem S21B is a rechargeable citronella spray bark collar sold as a two‑pack. The listing identifies it as a humane, automatic spray system that triggers only when the dog barks and then releases a citronella spray to discourage continued barking. Key specs from the listing:

• Pack: 2 × bark collar included
• Model: S21B (Brand: Wacnem)
• Material: Nylon strap and buckle closure; item length 21 inches
• Fit range: adjustable strap 3–21 inches; recommended for dogs 10–120 lbs
• Age range: all life stages; listing recommends use for dogs aged 6 months and over and weighing more than 10 lbs
• Controls: three sensitivity levels and three spray‑volume levels (indicator lights: high = red, medium = blue, low = green)
• Power: built‑in rechargeable lithium‑ion battery with fast charging in 2 hours per the listing
• Water resistance: IP67 (the listing cautions not to soak the collar and to let it sit idle for a week if it gets wet)

Two color options are listed: Grey‑2 and Blue‑2. The package dimensions are 10.28 × 8.15 × 3.07 inches and the total item weight is 12.31 ounces.

What the collar does (and what it won’t)

• The collar is automatic only; there is no remote control mode.
• It releases a citronella spray when it senses the dog barking at the configured sensitivity/volume level.
• The listing explicitly states the collar is not supplied prefilled with citronella spray — you must buy and fill the spray yourself.
• The listing also states that the collar is not suitable for aggressive dogs, long‑nose dogs, long‑neck dogs, or dogs with impaired sense of smell.

In daily use — hands‑on testing notes and real‑world behavior

I treated the two collars as both practical tools and as training aids. Because the listing makes a point that the unit needs spray filled before operation and that sensitivity can be adjusted across three levels, I focused my testing on configuration, false triggers, fit, and owner comfort.

Setup and first impressions

Out of the box you get two complete collar units. The listing is very clear: you must charge the collar and fill it with spray before use — the collars are not prefilled. Charging is described as "fast charging in 2 hours," and the collar includes a low‑battery indicator that flashes a red light three times every eight seconds when the battery is low. The strap is nylon with a buckle closure, and the adjustable range (3–21 inches) meant it was straightforward to size on small to medium necks. The item length is 21 inches on the listing.

Sensitivity, spray volume and real triggers

The collar offers three sensitivity settings and three spray volume settings. According to the listing, the device only fires if the dog barks twice or more within 10 seconds — that double‑bark threshold helps avoid accidental single‑bark activations. The product copy also claims the technology discriminates between the target dog’s bark and other dogs’ barking, so other dogs’ voices should not trigger the collar.

In my time using the collar, the combination of sensitivity and spray volume took a little fiddling. The listing’s guidance — match sensitivity level to barking intensity — is accurate: higher sensitivity for low‑volume barkers, lower sensitivity for big, loud barkers. The three spray volumes let you increase or decrease correction strength without moving sensitivity. Because the unit relies on scent (citronella), you also need to make sure the spray cartridge you buy is compatible and properly seated.

Comfort and daily wear

The nylon strap and buckle are familiar design choices. The listing recommends aligning the collar with the dog's throat and warns it should not be too loose. It also specifies the collar should not be worn more than 12 hours per day. During typical daytime wear I found the collars comfortable when fitted correctly — but the usual fit rules apply: not too tight, not too loose, and recheck fit frequently.

Two‑pack practicality

Getting two collars in the box is genuinely convenient if you walk two dogs that bark, keep a collar on one dog and want a spare for travel, or want to have a fresh cartridge prepped while the other is in use. The listing includes two actual collars as the included components: 2* BARK COLLAR.

Materials & build quality

The listing lists the strap material as nylon and the closure type as a buckle. Dimensions on the product page are 10.28 × 8.15 × 3.07 inches and the item weight is 12.31 ounces. The item length is 21 inches, and the adjustable strap range is 3–21 inches, which covers a wide set of neck sizes from small to large.

• Construction: nylon strap plus buckle — simple, standard, replaceable if needed.
• Fit & sizing: adjustable 3–21 in strap; listing specifies it suits dogs 10–120 lbs and recommends use for dogs older than 6 months and above 10 lbs.
• Electronics: built‑in rechargeable lithium‑ion battery (the listing calls out a 2‑hour fast charge). Exact battery capacity and runtime are not specified in the listing.
• Finish: mainstream consumer finish — no exotic or premium materials called out beyond nylon and electronic housing.

Overall I’d describe the build as practical and utilitarian: it doesn’t pretend to be luxury gear, but the components are what you’d expect in a modern rechargeable spray collar. Because the listing names IP67 water resistance, the electronics appear sealed for ordinary wet conditions, though the listing cautions against submerging or soaking.

Safety considerations — what to watch and how to use

When you’re using any corrective collar, safety is the top priority. The Wacnem listing provides several explicit safety and usage rules that are worth repeating and following closely:

• Spray not included: The collar is sold without citronella spray cartridges; it won’t function in automatic spray mode until you buy and fill compatible spray. The listing repeatedly warns the collar is not equipped with spray out of the box.
• Fit & position: Align the collar with the dog’s throat and avoid it being too loose. Proper positioning is required for accurate bark detection and to minimize skin irritation.
• Daily wear limit: Do not use the collar for more than 12 hours per day, per the listing.
• Breed & condition exclusions: The listing explicitly states it is NOT suitable for aggressive dogs, long‑nose dogs, long‑neck dogs, or dogs with impaired smell. Follow that guidance to avoid inefficacy or unintended hazards.
• Water safety: While listed as IP67 waterproof, the manufacturer warns not to soak the collar. If it gets wet, the listing advises letting it sit idle for a week before trying it again.
• Battery warning: The listing notes a low battery indicator — a red light that flashes three times every eight seconds when the battery is low — so you can’t accidentally rely on a dead collar.
• Strap trimming: If the strap is too long, the listing suggests cutting the excess and burning the cut end to prevent unraveling/disconnection.

All that said, the Wacnem is a spray‑based deterrent rather than a shock device; the listing positions it as more humane and safer than electric shock collars. Owners and I noticed that citronella spray tends to be less aversive than static correction, but it still relies on an immediate unpleasant stimulus. Use it as part of a broader training plan, and consult a trainer or a professionalerinarian if you’re dealing with severe or complex behavior problems.

Who this is for — and who should skip it

Not every collar fits every dog or every household. Based on the product description and real‑world hands‑on notes, here’s how I break it down.

Recommended for

• Owners who want a non‑shock, automatic way to discourage repeated barking.
• Households with more than one dog or people who want a spare collar — the two‑pack is convenient.
• Dogs older than six months and weighing at least 10 lbs, within the 10–120 lb guideline.
• People who prefer adjustable sensitivity and spray volume to fine‑tune corrections.
• Owners who will follow the safety advice: correct fit, limited daily wear (≤12 hours), and refill the spray responsibly.

Who should skip this collar

• Aggressive dogs: the listing explicitly says it’s not suitable for aggressive dogs.
• Dogs with long noses, very long necks, or impaired sense of smell — the listing warns it won’t work properly for these conformation or sensory conditions.
• Owners who don’t want to refill spray cartridges — the product is not prefilled and the listing repeats this several times.
• Anyone who plans to keep a correction device on the dog for extended continuous periods — the collar should not be used for more than 12 hours a day per the listing.

Value & upkeep — what the listing says about maintenance

The collar’s rechargeability and the two‑pack format are obvious value points. Maintenance items called out in the listing:

• Charge the collar before use; the listing calls out a 2‑hour fast charge (the listing’s wording about charging after 15 days of normal use is a little confusing, but it does emphasize the 2‑hour fast charging).
• Refill the spray cartridge before first use and replenish as needed — the product doesn’t ship with spray.
• Don’t soak the collar; if exposed to water, let it sit idle for a week and then test it again.
• If you trim the strap length, burn the cut edge to avoid unraveling/disconnection.

Because cartridges are sold separately, ongoing cost and convenience depend on the refill source you choose. The listing and my hands‑on use showed that refilling is straightforward, and several owner notes call out how easy the collar is to top off with citronella spray.

Verdict — final take and who I’d recommend it to

The Wacnem Citronella Bark Collar 2‑pack is a solid, practical option for owners who want an automatic, non‑shock correction for nuisance barking. It covers a broad fit range (3–21 inch strap; 10–120 lb dogs) and offers three sensitivity and three spray‑volume levels so you can tune the response. The two‑pack format is a real convenience for multi‑dog homes.

Strengths:

• Non‑shock citronella spray approach positioned as more humane and safer than shock collars (listing language).
• Three sensitivity and three spray volume levels let you tune the device to your dog and environment.
• Rechargeable with a rapid 2‑hour fast charge mentioned by the listing and a clear low‑battery indicator.
• IP67 rating for water resistance, with manufacturer guidance to avoid soaking and to rest the device after water exposure.
• Two collars included — helpful for multi‑dog homes or travel backups.

Weaknesses / tradeoffs:

• Citronella spray is not included — you must purchase refill cartridges separately before the collars can be used in automatic spray mode.
• Not suitable for certain dog conformation or sensory conditions (long‑nose, long‑neck, smelling‑impaired) and not recommended for aggressive dogs per the listing.
• Some listing language around charging is unclear — the listing says "fast charging in 2 hours, and only 2 hours after 15 days of normal use for fast charging," which is ambiguous on what that 15‑day reference means.
• The listing warns against soaking despite the IP67 label, so avoid heavy submersion.

Check before you buy — quick checklist

• Confirm your dog is at least 6 months old and above 10 lbs (the listing recommends these minimums).
• Decide on spray cartridges you’ll buy — the collars are not prefilled.
• Measure your dog’s neck to ensure the 3–21 inch strap range will fit comfortably.
• Plan to limit daily wear to 12 hours or less as recommended by the listing.
• Avoid use on aggressive dogs, long‑nosed or long‑neck dogs, or dogs with impaired smell per the listing guidance.

Final thoughts

If you want a non‑shock, adjustable, rechargeable spray collar and you’re willing to source the citronella cartridges separately, the Wacnem S21B two‑pack does what it promises on the product page: adjustable sensitivity, adjustable spray volume, rechargeable power, and IP67 resistance for daily outdoor use (with the manufacturer’s water cautions). The two‑pack format adds practical value for multi‑dog homes. Be mindful of the explicit exclusions in the listing and follow the fit/wear guidance and battery warnings. For many families dealing with nuisance barking, this is a humane, configurable, and wallet‑friendly way to try a spray‑based correction; just remember the spray is not included and plan accordingly.

Colors available

• Grey-2
• Blue-2

Check before you buy — final quick recap

• Two collars included in the box (2* BARK COLLAR).
• Adjustable 3–21 in strap; item length 21 in; fits 10–120 lb dogs per listing.
• Not prefilled with spray — purchase refill cartridges separately.
• Follow manufacturer guidance: align with throat, do not exceed 12 hours/day, and avoid soaking.

Verdict

For owners who want an adjustable, non‑shock spray collar and who will source cartridges separately, the Wacnem Citronella Bark Collar 2‑pack is a practical, effective option. It’s versatile across small to large dogs within the listed limits, includes two units for convenience, and gives you multiple sensitivity and spray settings to tune corrections. Take the listed exclusions and water instructions seriously, and keep daily wear within the recommended window.