Bluetooth 5.0 wireless streaming range up to 39ft(12m),Simple compact design but practical and powerful, Adopt TI TPA3116D2 chip to get clear and clarity sound, no audible noise, dead silent when nothing is playing through itAdvanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your homeHome Hi-Fi integrated amplifier, Exclusively designed for the customers who pursue HiFi sound; Ship with power adapter and power cord, you can use directlyPerfectly suited for your desktop or a smaller space in your home or office, Aluminum shell to sure high qualityHightlights:Model: BT01Power Adapter: 19V/4.74ADC Input Range: 15-24VTerminating Impedance: 2 Ohm - 8 OhmMAX Power Output: 50W x 2THD: less than or equal to 0.04%;Frequency Range: 20Hz - 20kHz ( +/- 1 dB)SNR: greater or equal to 98dBInput Sensitivity less than or equal to 280mVInput Mode: Bluetooth and 3.5mm AUXBluetooth Transmission Distance: Up to 39ft(12m)Bluetooth 5.0 streaming range up to 39ft(12m)Colour: as shownMaterial: ABSPackage Contents:1 x Bluetooth Sound AmplifierOnly 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.