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!
