Features: 1. Ergonomic appearance and ABS engineering plastic shell, in line with modern aesthetics; 2. Receiver IPX67 waterproof, ultrasonic welding; 3. Faster pairing (can be completed in 1 second); 4. Large-capacity lithium battery, Micro USB universal charging interface; 5. Remote control Circular white light LCD liquid crystal display, receiver smart ring operation indicator; 6. Environmental protection collar, zinc alloy electrophoresis safety pin buckle; woven collar is optional at the same time 7. Measured the reception distance of 300 meters, penetration signal of 3 walls; 8. The signal is received synchronously, and the receiver responds quickly and precisely. 9. The receiver's conductive column is placed 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: black, red Collar length: 64cm Charging interface: Micro USB 400 meters barrier-free reception distance Packing list: packing box*1, remote control*1, receiver*1 , collar*1, charging cable*1, test light*1, conductive pole*2 pairs, conductive silicone cover*1 pair, English user manual*1