【Rechargeable & Fast Charging】Built-in lithium battery. Our dog training collars provide 1-2 hours of use with multi-day battery life. Transmitter and receiver can be charged at the same time.< /p> 【Easy to use】This electronic dog collar has sound, vibration, shock, light and independent up and down buttons, allowing you to directly choose the training mode that suits you. You can switch quickly without confusing complexity. The color red 【Best Fit Adjustable Collars】Shockproof collars are made from high quality materials and are gentle on your dog. -Receiver-: Weight 45g Size: 6cm * 3.5cm * 2.5cm Battery: 650mAh Voltage 3.7V Power 2.405Wh remote control- Weight): 50g Size: 14.5cm5cm2.1cm Battery: 300mAh
