1. USB interface (Mini 5 Pin).
2. Compatible with PC, notebook, cell phone, MP3 player via line-in cable.
3. Support TF card, USB flash.
4. Power on/off, backward/Vol-, Forward/Vol+, Play/pause function.
5. Product meas: 220x77x41mm.
6. Power output: RMS 2.5Wx2 (THD=10%).
7. RF:80-18KHz (+/-3dB).
8. S/N ratio: ≥70dB.
9. Impedance: 4Ω.
10. Speaker Diameter: ø40.
11. Power: DC 5V/1200mA.
12. Line-in: Stereo 3.5mm.
13. Recharges with computer USB Jack or AC adapter.
14. Built-in Lithium battery.
15. With FM function.
Accessories: 1 x 3.5mm cable; 1 x USB 5 PIN cable.