Invisible in Ear Ultra-Small Sports Wireless Bluetooth 4.1 Stereo Headset Mini Earphone Earpiece Earbud Headphone with Microphone Hands-free Calling.
The Newest bluetooth 4.1 headset with lightweight and compact portable design. Simple and Stylish.
Mode: HFP, HSP, HD Voice, Voice Prompts A2DP, AVRCP.
Press and hold the button of one earphone for 6 seconds until red light and blue light flash alternately，turn on your mobile phone's bluetooth and search for the device name U1T and connect to it. Press and hold the button of the other earphone for 2 seconds until red light. Then TWS earphones will connect to your mobile phone
Mini TWS Twins Wireless Bluetooth Stereo Headset In-Ear Earphones Earbuds

Features:
100% brand new and high quality.
Invisible in Ear Ultra-Small Sports Wireless Bluetooth 4.0 Stereo Headset Mini Earphone Earpiece Earbud Headphone with Microphone Hands-free Calling.
The Newest bluetooth 4.1 headset with lightweight and compact portable design. Simple and Stylish.
Up to 2 hours of continuous talk time, 2-2.5 hours of music time. the wireless range up to 10 meters.it offers you the wireless freedom, and it gives you the most comfortable wearing experience.
Compatible with most Bluetooth-enabled devices. This will connect automatically with a phone paired previously.

Bluetooth version: Bluetooth v4.1
Mode: HFP, HSP, HD Voice, Voice Prompts A2DP, AVRCP.
Transimit Power: Class 2
Music Time: 2-2.5h about
Talking Time: 2-2.5h about
Standby Time: 50h about

Press and hold the button of one earphone for 6 seconds until red light and blue light flash alternately, turn on your mobile phone's bluetooth and search for the device name U1T and connect to it. Press and hold the button of the other earphone for 2 seconds until red light. Then TWS earphones will connect to your mobile phone