General description This One-Piece Rechargeable Dog Training Collar is designed to effectively train your pet, helping them understand commands and reduce unwanted behaviors such as barking and biting. With a range of 1000 meters, this collar is perfect for training in various environments, including yards and parks. The collar is suitable for pets over 5.5 lbs and features a safety lock button to prevent accidental activation. Technical specifications Remote control range: 1000 meters Collar length: adjustable from 16cm to 62cm Receiver waterproof rating: IP67 Battery type: Lithium-ion Input: 100-240V, 50/60Hz Output: 5V, 0.5A Transmitter battery voltage: 3.7V Compatibility and accessories Suitable for all size dogs (15lb~100lb or 1.2-25kg) Package includes: 1 x remote transmitter, 1 x receiver collar, 1 x adjustable collar, 1 x indicator light, 1 x USB charging cable, 4 x electrodes, 4 x conductive silicone, 1 x detailed user manual Installation Charge the collar before first use