PetSafe NanoBark 2.0 Bark Collar for Small Dogs — Lightweight, 4–15 Inch Neck, Auto-Adjusting Static, Waterproof

Smart training for small dogs without the guesswork

Small dogs have big voices, and NanoBark 2.0 is built to fit their size while delivering a calm, controlled training experience. Designed for necks from four to fifteen inches, this lightweight collar sits comfortably without bulk, making it a practical choice for apartments, homes, or outdoor adventures where your dog spends time indoors and out.

Smart, small-dog design

The slim, low-profile collar moves with your dog and offers a snug fit that travels with daily activity. It uses Perfect Bark technology to respond primarily to your dog’s bark, helping minimize exposure to background noise and other pets. A long-lasting rechargeable battery keeps the collar ready for daily use, with up to seven days between charges depending on activity levels. The waterproof construction means puddle play is never off-limits.

Adaptive training at a glance

With 10 auto-adjusting static correction levels and the patented Variable Pulse technology, NanoBark 2.0 aims to deliver the minimum effective level of correction while adapting to changing barking patterns. The system is designed to help maintain effectiveness without over-stimulation, which may support steadier training over time.

• Perfect Bark technology helps reduce false triggers from background noise and nearby pets.
• Automatic adjustments tailor correction to the moment, supporting consistent training results.

Real-life use scenarios span everyday home life to outdoor play. In apartments, it may help reduce interruptions during quiet hours; at home, it can support calmer greetings at the door; during walks or yard time, it provides a training signal that is meant to stay focused on your dog’s own bark. This collar is one option within the PetSafe family designed to work with a variety of correction styles if you’re exploring alternatives beyond static correction.

What you get and how to use it

The NanoBark 2.0 is built for small breeds with a secure, comfortable fit and a weather-ready design. Key benefits include a lightweight form, a neck size range that accommodates growth, and a rechargeable battery that powers repeated training sessions. If you’re considering other correction styles, PetSafe offers additional collar options to fit different training preferences.

• Lightweight, compact collar tailored for tiny breeds like chihuahuas, yorkies, and beagles.
• Waterproof design supports both indoor routines and outdoor adventures.

Note: This product uses static correction. For alternative approaches, PetSafe provides a range of collars using tone or spray corrections to suit different training plans.