The WD-8907 is a portable MP3 player that supports MP3, WMA and MAV formats, includes a micro‑SD slot (up to 32 GB, up to 999 songs), can store 20 FM stations, has a built‑in microphone and headphone jack, and offers playback modes such as repeat and shuffle.
The manual outlines safety precautions, proper USB charging (charging starts even when the device is off), battery life of about 6 hours, dimensions of roughly 78 × 27.2 × 13.2 mm, weight of 18.6 g, and power specifications (USB 5 V, internal 3.7 V battery). It also provides troubleshooting steps for common issues like power failure, headphone problems, and memory errors. This manual is written in Chinese.
| Dimensions | ≈78 × 27.2 × 13.2 mm |
|---|---|
| Power source | USB 5 V / internal 3.7 V battery |
| Maximum output power | ≈550 mW |
Connect the device to a USB charger or computer; charging starts automatically even if the player is off.
Check the battery level, connect to USB to charge, then try turning it on again.
Up to 999 songs can be stored, with a micro‑SD card of up to 32 GB.
Battery replacement is available but requires a paid service.