1、Acoustic design of single dynamic driver with double dynamic unit, provides you perfect listening experience. 2、Low transmission latency, 10m/32.8ft bluetooth transmission distance, powerful performance. 3、Charging for 10 minutes can be used for 3 hours, and 1 hour charging can use for 7 hours. 4、For Hi‑Res LDAC wireless sound quality, with lossless bluetooth sound quality, clear. 5、For ENC technology environmental noise reduction performance, enjoy music even in noisy environments. Item Type: Bluetooth Neckband Earphones Material: Graphene + Metal Titanium Color: Gray Weight: Approx. 570.0g/20.1oz Model: E1001BT Charging Time: 1 hour Talk Time: 7 hours Music Playback: 7 hours Built-in Battery Capacity: 120mAh Speaker Impedance: 32 Ω Communication Distance: 10m/32.8ft Input: 5V 1A Bluetooth Specification: Bluetooth 4.2 Bluetooth Protocol: HFP / A2DP / AVRCP How to use: 1. Turn on/off Power on: Long press the power button for 2 seconds to turn on, the blue light will stay on for 1 second Shutdown: Long press the power button for 4 seconds to shut down, the red light flashes for 1 second 2. Bluetooth Pairing It automatically enters the pairing mode when it is turned on for the first time, and the red and blue lights flash alternately Re-pair: In the power-on state, press and hold the power button for 2 seconds to enter the pairing mode In the off state, long press the power button for 4 seconds to enter the pairing mode 3. Charging Support fast charge, charge for 10 minutes, you can use 3 hours The red light is on when charging, and it goes out when the charging is complete 4. Other functions Safe pairing mode: When the device connected to the Bluetooth headset is lower than Bluetooth version 3.0, the preset connection security password 0000 is used Clear pairing: press and hold volume + and volume-at the same time, 2 buttons for 3 seconds, after clearing the pairing, enter the automatic search mode Out of connection range: The Bluetooth headset enters the mode of connecting back to search for devices, and it will automatically shut down if there is no device connection for more than 5 minutes 1 x Bluetooth Neckband Earphones 1 x Manual 1 x Charging Cable 8 Pair x Replacement Earplug 1 x Sticker 1 x Storage Bag