Aetertek&reg; newest AT-919C 1000M Remote 1&2 Dogs Training Shock Collar Auto Anti Bark Submersible with LCD display Control 1 or 2 dogs separately or simultaneously,1000 yards remote control electric shock devices with 5 unique design:Auto anti bark, Vibration, Beep, adjustable Shock, big and easy to push rubber button. Please charge receiver every 2 days. Receiver will last 2-3 days after one full charge. The duration time may vary depend on the usage frequency. Professional training collar with Rechargeable Remote and 100% waterproof receiver. Please leave the remote alone and let it drain by itself due to out of power. Then recharge the remote and try it again. &#x2605;Updated version of AT-919 dog trainer, with advanced appearance and performance &#x2605;Comes with 6 months quality warranty &#x2605;With adjustable TPU strap length from 6-25"/15cm-65cm, suitable for all dog size from 15-150lbs, especially for medium or large hunting dogs