1. Support Card, U disk, mobile phone, computer, MP3, car 2. Remote Control: Full function. With number key it can directly control. 3. Self-equipped with switch. 4. With FM Radio Function 5. Built-in MP3 player. Stable quality, energy saving, low energy consumption, low calorific value, long service life Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Rated Power: 25W Sound Conversion rate: 90% Voltage: 220 V Impedance: 4 (ohm) Loudspeaker unit: 133(mm) Sensitivity: 200 Frequency response range: 20-20000 Model Number: Amplifier Channels: 2 (2.0) colour:Black Material:Metal + plastic size:Panel: 13.8 x 8cm Package Contents: 1 x Car Bluetooth Amplifier 1 x remote control 1 x US Plug 2 x connecting line Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.