Dared MP-5BT HIFI Audiophiles Professional Valve Amplifier Bluetooth Stereo Multi-Channel Hybrid Integrated Amplifier,Bluetooth/USB DAC/Headphone,25W*2,with 6N1*1,6N2*1,6E2*1 Tube (Rose Gold) Sales over 100 thousand units,International renowned brand,top player in hi-fi vacuum tube amplifier industry,popular for 15 years,CE, FCC, ROSH certification,A number of patented technologies. An on-off switch, an input switch (to choose between USB, Bluetooth and analogue options), a chrome volume button, and a standard 3.5mm headphone jack.The rear of the unit features an analogue input and a pre-amp output, both on gold RCA jacks, the Bluetooth antenna, a USB input to connect a computer, two pairs of speaker terminals. A lot of valve amplifiers in that the glass vaccum tube section is on the exterior. It's covered with a metal casing featuring thin air vents which help cool the tubes, and a lacquered black piano finish, which adds a final touch of luxury to the unit.Perfect for home theater, shop, cafe, restaurant and shopping mall etc. Support Bluetooth wireless for Android, iPhone, tablets, smartphones, other Bluetooth media devices; Non-Bluetooth friendly USB and Aux input,when you plug it in via DAC/USB ,works purely in Direct Sound ,Have Lasting appeal,see Beautifuland sound beautiful. This tube amplifier is the best choice for HIFI friends a first choice for music lover; masterpiece presented by expert with over 20 years of experience;it's the Darea best-selling and most cost-effective tube amplifier in the World,The machine is warranty for 1 years,If the product you purchase does not satisfy your needs, send it back for a full refund.