This product is a Bluetooth speaker that supports MP3, FM radio, recording and other functions. It adopts a 2.1-channel design and is available in black and white.
This manual provides step‑by‑step instructions for using the Bluetooth HAPP3.3010 MP3 earphone, including first‑time charging, pairing with mobile phones, and operating the built‑in MP3 player, FM radio, and Bluetooth audio streaming functions.
It also contains safety warnings, product compatibility lists, and a troubleshooting guide for common issues such as power problems or USB detection failures. This manual is written in Chinese.
| Battery type | Rechargeable polymer battery |
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Press the “+” button to increase volume and the “‑” button to decrease volume; the volume keys are located near the SD card slot.