Mini HIFI Digital Bluetooth Audio Power Amplifier. TF Card, AUX, U disk, MP3 play, support bluetooth connection. Supports FM stereo radio. With treble, bass, and volume control, very easy to use. Low distortion supplies a clearer, stronger sound. 2 channel output, Upgraded high power 90W + 90W. Small heat, light weight, with Remote control function. DC/ AC power in, Switch voltage automatically. Type:BT Power Amplifier Model:AK35 Channel:2.0 Bluetooth Version:V5.0 Voltage:AC110V-220V/DC 12V5A Impedance:4-16 Ω RMS power:30W+30W power:90W+90W Load impedance:4-16Ω SNR: 85 db FM Frequency: 87.5-108MHz Distoration rate: 0.05% Frequency: 10Hz-20KHz Input:Bluetooth//U-Disk/TF Output:Wired Speaker Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage:AC100-240V Color:Black Material:Plastic + Metal Package Contents: 1 x Audio Amplifier 1 x Remote Control 1 Cable 1 x Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection 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.