4 inch Round Shape Stereo Motorcycle / Car / Household Subwoofer, Built-in Bluetooth, Support TF Card & U Disk Reader, with Remote Control

1. 100% brand new and high quality.
2. Small size is easy to carry.
3. Low power consumption.
4. No screen display, support FM.
5. Voltage: 12V-220V(V)
6. Maximum power: 100W (W)
7. Frequency response: 39-139Hz+/-3db
8. Sensitivity: 1Watt/1meter