Remote Control Dog Training Device Bark Stopper Rechargeable Collar Waterproof Electric Shock Vibration Trainer, Specification: One for One. Material: ABS+PC, silicone, collar material: nylon. Adjustable band + anti-breaking buckle.Remote control distance: up to 500 meters. Battery: 702025 300 mAh lithium battery. The remote control host dual-screen display, does not hurt the dog. Function gear: 1-7 gears, the default sound is 7 gears. Three modes: sound warning, vibration, micro current. Battery life: 7 days for normal use of the receiver, depending on how to use it, 30 days for the remote control. Receiver size: 70x39x25mm, weight: 50g; remote control size: 125x50x19mm, weight: 60g. Silicone shock head x 1. 0.27kgs / 0.60lb. 15.5cm 11cm 5cm / 6.1inch 4.33inch 1.97inch.