<b>Intelligent Compatibility</b><br>Support all the devices with Bluetooth function like smart phones, tablets, Laptop. In compatible with all kinds of app, player, Television, chatting and so on,perfectly suitable for running, cycling, training, jogging, hiking and other indoor and outdoor sports.<br><br><b>BLUETOOTH 5.0</b><br>True Wireless stereo，real no for wires design, individual left and right channel, HIFI sound, both the left and right earbud are Bluetooth enabled,And built-in microphone for in-car or sports Hands-Free Calls, could be used separately ,or used as one pair.<br><br><b>How to Use Two Headsets</b><br>☛Step 1.For initial use,Open the phone or other device Bluetooth settings,search for the Bluetooth , click to connect.<br>☛Step 2. IOS After the first time pairing, the bluetooth earbuds will be automatically connectted to your mobile devices once they are on.<br>☛Step 3. Wireless headphones can be connected separately and separately to other Bluetooth devices.<br><br><b>Features</b><br>Weight : 102g<br>Function: Owns fast and stable transmission without tangling.<br>Bluetooth Version: V5.0<br>Standby Time: About 100 Hours<br>Display: For IOS System Battery Display<br>Play Music / Talk Time: About 3-4 Hours<br>Battery Type: Rechargeable Polymer Lithium Battery<br><br><b>Precautions</b><br>1.When charging, use a changer that is qualified and charging current to charge it.<br>2.Keep away from WIFI, router or other high frequency transmitting equipment to prevent interruption of signal receiving.<br>3.Please use this earphone under its working range and the effect would be better if there is no obstacle between the connected devices.