Import Dog Bark Stopper — Buy in Bulk from Supplier in China

The dog bark stopper from Zhejiang 3f Industry Ltd. is an ultrasonic device designed to deter excessive barking by emitting high-frequency sound waves inaudible to humans but disruptive to dogs. It operates on a 9V battery and has a detection range of up to 7 meters, activating only when bark is detected within a 120-degree field. The unit includes a sensitivity adjustment dial and an LED indicator for power and activation status, with no visible or audible human disturbance.

The device is built using ABS plastic housing and contains a piezoelectric transducer that generates frequencies between 18 kHz and 22 kHz, a range considered standard for canine deterrent devices. Internal circuitry is designed to avoid continuous operation, limiting pulses to 3-second intervals after detection to conserve battery. The product complies with CE electromagnetic compatibility standards and uses non-toxic, recyclable materials in its construction, consistent with the supplier’s stated focus on eco-friendly design.

This device is commonly purchased by pet owners, veterinary clinics, and animal shelters seeking non-physical methods to manage barking behavior. Buyers typically order in quantities of 50 to 500 units for resale or institutional use. Packaging is in retail blister packs with instruction manuals, and bulk orders are shipped in cartons of 100 units. The supplier offers OEM customization for branding and frequency tuning upon request, but does not guarantee certification for medical or commercial use.

Zhejiang 3f Industry Ltd. is based in Ningbo, Zhejiang, and operates a production center focused on ultrasonic pest control and air purification devices. The supplier identifies as a manufacturer with in-house design and engineering, and states that all employees undergo two weeks of training before beginning production. There is no public information on company size, revenue, or export history. The supplier is listed as imported and harbor-trusted, with no verified certifications or client testimonials provided in the source data.

The company does not claim to produce dog bark stoppers as a primary product line. Its listed focus is on ultrasonic pest repellers and air purifiers. The dog bark stopper appears as an extension of its ultrasonic technology platform. There is no mention of third-party testing, quality assurance protocols, or export documentation beyond general CE compliance. Buyers should confirm device performance and durability directly with the supplier before placing bulk orders.