C3 Mini Speaker TWS Connection Wireless Bluetooth Speakers with Lanyard Portable Sound Box Remote Shutter Rechargeable Battery Hands-free with Mic

Features:
Plays wireless music from your BT-enabled audio devices. It can also work as a remote shutter.
Supports TWS function, two of them can connect to each other for stereo and powerful rich sound.
Rechargeable 500mAh battery ensures about 4 hours of music playing. Includes a charging cable.
With a portable lanyard, you can hang it on your backpack, or just put it in your bag.
Built-in 3W speaker brings you perfect music and high-quality loud sound.
How to activate TWS function:
Activate true wireless stereo sound by pairing 2 C3 speakers. Turn the 2 speakers on and double press the power button of one speaker, then two of them will pair automatically.