Description: Bluetooth 5.1 wireless earbuds with stereo sound quality and built-in microphone.Support battery display, call function, NFC function, voice control, support music, multi-point connection and intelligent tuoch operation. Universal compatibility,support pairing with any Bluetooth-enabled Android, iOS, and Windows devices. Faster paring and super stable connection. Type-c faster charging. Can last for over 4 hours' playtime from a single charging. Providing convenient charging way and 10m connection range . Suitable for cycling, running, fitness, skiing, travelling, hiking etc. Specification: Bluetooth version: 5.1+EDR Distance: 10 meters Rechargeable battery: 500MAH Charging voltage/current: 5V/1A Headphone battery: 40MAH Talk time: about 3 hours Listening time: about 4 hours Charging time: about 1 hour Standby time: 120 hours Channel: stereo How to use: earplug style Whether single or double ear: bilateral stereo Function: battery display, call function, NFC function, voice control, support music, multi-point connection intelligent tuoch operation Size Chart: Material: plastic Charging Case Size: 5x5x2.7cm/1.97x1.97x1.06inch Package Includes: A pair of headphones 1 Piece Charging Case 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!