M20™ and M50™ are Bluetooth headphones with features such as call answering, redialing, voice dialing, reconnecting Bluetooth connection, etc. The headphones can be paired and connected to mobile phones, and support multi-point connection. They are easy to use and suitable for wearing in the ear.
This manual provides step‑by‑step instructions for first‑time setup, Bluetooth pairing with one or two phones, and how to manage calls and audio. It also describes how to charge the headset via the Micro‑USB port and how to reset or reconnect when the link is lost.
The specifications section lists talk time, standby time, Bluetooth version, supported profiles, operating temperature, and other technical details. Support information and warranty links are included at the end of the document. This manual is written in Chinese.
| Talk time | over 6 hours |
|---|---|
| Standby time | up to 16 days |
| Working range | up to 33 ft (10 m) |
| Weight | 115 g |
| Charging connector | Micro USB |
| Battery type | rechargeable non‑replaceable Li‑polymer |
| Charging time | up to 90 minutes |
| Power requirement | 5 V DC, 180 mA |
| Bluetooth version | v3.0 |
| Operating temperature | 32 °F – 104 °F (0 °C – 40 °C) |
The headset can maintain a Bluetooth connection up to about 33 ft (10 m).
A full charge takes up to 90 minutes using the Micro‑USB charger.