Rechargeable and Rainproof Remote Dog Training Shock Collar with Beep, Vibration and Shock Electronic Collar for 1 or 2 dogs 100 levels of vibration Expandable to 2 dogs Rechargeable and waterproof The collar is made in high quality TPU materials. Fits all dogs. Convenience of operation, easy-to-read LCD screen shows the stimulation . Backlight LCD screen for easy low light condition viewing.