Separate function buttons on remote transmitter for easy training Receiver collar waterproof guarantee, no problem for short swim Shock vibration at 5 levels, allowing you to change the behavior of more dogs Reveiver Collar low battery indicator and charging indicator High quality lithium battery charging, long standby time Packing List: 1 * Bark Stopper (package without battery) We only sell bark stoppers, not other items in the picture. Due to the differences between different monitors, the pictures may not reflect the actual color of the item. Due to manual measurement, please allow slight errors in size.