Feature: Bluetooth chip is equipped to ensure the sound quality and the highest reproduction of the headset. 2. Portable storage box, easy to carry and well protected. Note: This box has no power supply function. 3. Ultra-light and comfortable design, ergonomic earplugs and earmuffs provide no heavy feeling even if used for a long time. The 180-degree rotation arm can adjust the angle and install the headset on the right or left ear. 4 Compatible with iPhone, Samsung, Huawei, LG, HTC, Android and other mainstream smartphones, with a working time of up to 8 hours, a standby time of 240 hours, a fast charging time of 1.5 hours and a range of 10 meters/30 feet. How to connect to your phone 1. When the Bluetooth headset is turned off, press and hold the MFB for about 3 seconds until the indicator on the headset flashes red and blue, and then press TL Enter to enter the search mode. 2. Open the phone's Bluetooth function, click \"Search Bluetooth device \" to search for the headset, and click \"TL connection \". Package content: 1 * Bluetooth headset 1 * USB charging cable 1 * User manual