1. Bluetooth version: 5.0
2. Transmission distance: within 10 meters
3. Speaker diameter: 40 mm
4. Frequency response range: 50-60Hz
5. Signal to noise ratio: 75dB
6. Power supply: external USB power supply
7. Power supply: DC 5V
8. Expansion storage: 16GB
9. 5W full frequency 40 internal magnetic speaker
10. The inclined plane is 45 degrees to expand the visual experience
11. Built-in microphone, one key to complete incoming calls
12. FM radio can be adjusted
13. Weight: 440 grams
14. Size: 12x12x11.7 cm

Function keys:
1. Short press to power on/switch function, long press to power off
2. Adjust the screen brightness, SLEEP automatically shuts down
3. Long press the volume down, short press the previous song, adjust the clock-
4. Play/pause/hands-free/long press/adjust clock, long press in FM mode to search for radio stations
5. Long press the volume up, short press a song, adjust the clock +
6. Long press to adjust alarm 1, short press to confirm alarm adjustment
7. Long press to adjust alarm 2, short press to confirm alarm adjustment