Check the Receiver Battery LevelWhen the receiver is turned on, press the power button twice quickly to check the battery level:Receiver beeps 5 times, representing 100%(80-100%)Receiver beeps 4 times, representing 80%(60-80%)Receiver beeps 3 times, representing 60%(40-60%)Receiver beeps 2 times, representing 40%(20-40%)Receiver beep 1 time, representing 20%(1-20%)Dog Training Collars Support 3 Dogs Training With only one remote, you can train 3 dogs at the same time, or you can train one dog alone. You only need to pair the receiver with the remote with the same or different signal channels. Please pair according to your training needs.1.If you want 3 receivers to beep at the same time, connect 3 receivers to the same signal channel of the remote,and then press the remote beep button to train 3 dogs at the same time.2.If you want 1 receiver to beep, connect 3 receivers to different signal channels of the remote, then press the remote beep button, the collar will only train one dog, and if you need to train the other two dogs, press the "CH" button on the remote to switch the signal channel.Advantages of Paipaitek PD 526V-2 : ► 1 ~ 100 vibration level adjustment； ► No shock, only sound and vibration modes; ► Support up to 3 dogs training at the same time; ► 3300 feet (1100 yard) ultra-long range control; ► Separate command button for easy operation; ► Charging for 2 hours,continuous use for 20 days; ► 1.4oz lightweight receiver will not burden your pet; ► Remote transmitter is small, flexible and easy to use； ► Memory function design,no need to reset vibration level; ► Super strong wireless signal,no obstruction through the wall; ► Adjustable collar length 8”-27”, suitable for small,medium dogs; ► IPX7 waterproof collars allow your dog to enjoy swimming； ► The remote with a flashlight function and neck lanyar.