Features: 1. Ergonomic appearance and engineering ABS plastic body conform to modern aesthetics; 2. IPX67 waterproof receiver, ultrasonic welding; 3. Faster pairing (can be completed in 1 second); 4. Large capacity lithium battery, universal micro USB charging interface; 5. Remote control.Circular LCD liquid crystal display with white light, receiver smart ring power indicator; 6. Environmental protection collar, zinc alloy electrophoresis safety pin buckle; Strap collar is also optional 7. Measured the reception range of 300 meters, the signal of penetrating 3 walls; 8. The signal is received synchronously and the receiver reacts quickly and sensitively. 9. The conductive pillar of the receiver is under the side, which is more suitable for the pet’s neck and provides better comfort. Shell Material: ABS Collar Material: PVC Pin buckle material: zinc alloy Panel color: red Collar length: 64 cm Charging interface: Micro-USB 400 meters free Reception range Color box size: 17.1 x 13.6 x