Vòng Cổ Sóng Siêu Âm Chống Sủa Cho Chó

Features:
ABS material is harmless to your dog.
Ultrasonic mode can stop your dog from barking silently, which is ideal for night or quiet environment use.
Be activated accurately by your own dog's bark vibration, and can not be activated by other dogs' barking.
Audible mode creates harsh buzz to prevent your dog from barking.
Adjustable collar is suitable for most medium and small dogs, and lightweight is convenient to carry.
Low power consumption, it just requires 2pcs AG10 button batteries  (not included).

Specifications:
Material: ABS
Color: As Pictures Show
Power: 2Pcs AG10 Button Batteries (Not Included)
Size: 6.2 * 6.2cm / 2.4 * 2.4inch
Collar Length: 55cm / 22inch (Longest)
Weight: 40g
Quantity: 1 x Set of 1Pc Bark Control + 1Pc Collar
Type: Training Collars 
Function: Dog Bark Control 
Effect Time: 1-3 Weeks
How To Use:
1. Unscrew the back cover to insert two 2pcs AG10 button batteries (not included) and close it, then press the ON/OFF button to start.
2. The red indicator light will be on to indicate it is working.
3. Set HIGH (big dog) or LOW (small dog)audio according to the actual situation of the dog. 
4. Press the ULTRASONIC button to start the ultrasonic controlling mode, it will send out ultrasonic(silent mode), and press the AUDIBLE button for audio mode if necessary, then the ultrasonic alarm mode will switch into audible alarm mode.
5. Gently hit the silver small circle of the item back in AUDIBLE mode, and the bark control will send out an audio alarm of normal work.
Package Includes:
1 x Bark Control (Requiring 2Pcs AG10 Button Batteries, Not Included)
1 x Collar
Notes:
1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. It will work in 1-3 weeks for most dogs, some dogs only need 7-14 days, while some dogs will need longer ti