Bluetooth technology | Built-in bass port | Digital signal processing | Built-in microphone and call-answer button | 5-hour, Li-ion rechargeable battery | Versatile, portable design | LED indicator | Amplifier Power 2 x 5 watts | Frequency Response 150Hz 20kHz | Signal-to-Noise Ratio 80 dB | Power: Listening time on battery power 5 hours | Dimensions: Subwoofer (H x W x D Metric/English) 63mm x 160mm | Black with silver elements - 1 Year warranty