Product parameter:  [Product name]: Ultrasonic bark stopper [Product Material]: ABS  [Product color]: Black+white(Panda shape repellents)  [Color box size]: 13.3*8*8.7CM 
Feature:  1.?Effective Dog Bark Control Device?Durable pet gentle bark control, dog training and barking deterrent: Upgraded Dual Speaker, more effective than old version bark deterrents.  2.?Control For Most of Dogs Safe?Barking control device automatically emits safe sonic sounds that dogs can hear clearly but not hurt dogs and humans'ear. Suitable for most breeds and sizes of dogs, except dogs with hearing problems or under 6 months. Ultrasonic anti-barking devices automatically detect barking from as far away as 33 feet.  3.?Rechargeable Long Working?Built-in 1500mAh rechargeable lithium battery, fully charged within 4-5 hours, can be used for 30-45 days, long standby about 60 days  4.?Easy to use for Indoor Outdoor?This new bark control device comes with a cute well-designed mini shape. Waterproof designed for easy hanging/mounting