1. Applicable object: dogs
2. Receiver rechargeable lithium battery: 400mAh
3. The transmitter and receiver do not need to use the code pair, you can receive the signal after the power on normal work
4. Three functions: audible warning, vibration warning, static warning.
5. Receiver with waterproof function
6. Reflective TPU with fluorescent light to improve safety at night
7. Note: transmitter not included!