Overview: You can listen to music by pairing your BT-enabled audio devices with the speaker, which also supports TWS function. Mini and portable, you can just put it in your pocket, or hang it on your backpack with a lanyard. It is perfectly suitable for home use, office use, and outdoor activities. Features: Plays wireless music from your BT-enabled audio devices. Supports hands-free call with built-in microphone. Supports TWS function, two of them can connect to each other for stereo and powerful rich sound. Rechargeable 500mAh battery offers 2-3 hours of playing time. BT 5.0, stable signal, more power saving. Mini size, with a portable lanyard, you can hang it on your backpack, or just put it in your bag. 3W internal magnetic horn brings you perfect music and high-quality loud sound. How to activate the TWS function: Activate true wireless stereo sound by pairing 2 L01 speakers. Turn 2 speakers on and double press the power button of one speaker, then two of them will pair