1[Rechargeable] Dog barking collar with rechargeable lithium battery, charge for 2 hours, can be used for up to 60 days, standby for more than 180 days. Suitable for large, medium and small dogs._x000D_ 2[Waterproof] Dog barking collar is IP rated waterproof design for safe use in any weather conditions, suitable for indoor or outdoor use. Use it in the rain without worrying about damage._x000D_ 3[Sensitivity Adjustment] The sensitivity of the bark collar can be adjusted, and the sound and electrostatic stimulation methods can be gradually strengthened, which is humanized and effective._x000D_ 4[Auto Protection Mode] No matter how many times the dog training collar is activated, after the gear stops barking for 30 seconds, it will automatically reset and return to the initial standby state._x000D_ 5[Protective] Barking device works 5 times continuously, after which the screen will enter a blinking state. Enter the initial standby state after 1 minute of stopping work. Fully guard the safety of the dog. 1 xDog BarkStopper1 x Nylon Collar Belt1 x Charging Cable4 x Metal Conductive Rod4 xSoftRubberConductiveRod2 x Anti Wear Buckle1 x Test Light1 x Manual Item Type: Dog Barking CollarMaterial: ABS, Nylon Weaved BeltLithium Battery: 220mAh (Shipped with Built in Battery)