Firstsing Mini TWS Twins Wireless Bluetooth V4.1 Stereo Headset In-Ear Earphone Earbud

Bluetooth support mode:HSP,HFP,A2DP,AVRCP
Chip:UK CSR
Transmission distance: more than 10m
Headset battery capacity:45mA
Power bank battery capacity:500mA
High quality stereo sound and stable connection with Bluetooth V4.1 technology.
Extra-long battery life, continuous talk time up to 4 hours.
Creative conductive portable charging system with small lipstick size charger.
Can be used as emergency power bank to charge your mobile phone.
Fashionable style,powerful and excellent compatibility. Supports hands-free calls.
TWS Mini Invisiable Stereo Earphone is the world's portable, wireless, and convenient earbud. The earbud's small size makes it fit easily in any ear. Appearing like a small dot in your ear,the earbud is almost invisible. Bluetooth technology enables you to connect the Mini to any smart device. You don't have to plug your phone in to listen to music or deal with annoying cords. The tiny earbud has a built-in mic, so you can easily take calls.
Say goodbye to annoying earbud cables with the new True Wireless Bluetooth Earbuds, one of the first True earbud to completely cut the cord thanks to rechargeable lithium ion batteries built into the housings.
The earbuds feature a unique patented conductive portable charging system. You just need to put it into power bank,it will automatically charge.
This intelligent headset with intelligent power bank is the best choice for mobile phone.It's supper mini,not only can be used as a car Bluetooth headset,also as emergency power bank for your phone.It can always keep full battery state.