This manual provides operating instructions, specifications, and precautions for the TWS-L21 wireless stereo earphones.
This document serves as the user manual for the TWS-L21 wireless stereo earphones. It details the device's technical specifications, including Bluetooth version and supported protocols, battery capacity, and operating range. The guide explains how to power on the device, pair it with a mobile phone, and use the function buttons for playback and calls. It also covers charging procedures and provides important usage precautions. This manual is written in Chinese.
Long press the function button for 3 seconds to power on.
Short press the function button to answer, and short press it again to hang up.