Check the listing for details. 4" Touch Screen Wall Mount Amplifier Home Stereo Audio Amplifier Speaker System. Color: Black, Condition: New. Listed at 199.99 USD. Model No.: U1-It's integrated amplifier installed in wall and have control unit on wall that you can control by mobile phone (Bluetooth-compatible) or by remote control.-You have Bluetooth-compatible connection to play music from your phone/pad/computer. Also you can play music from USB or MicroSD card. FM radio available.-You can modify the BT name and password for the amplifier.-This unit is widely used for room for home, office, hotel,etc. It's recommended to connect with 4 speakers. Product Features4" Capacitive Touch ScreenConnect with up to 4 speakersStereo Amplifier Module (RMS 2 x 15W @4Ω)BT connectivity for wireless audio input of smart phone, pad, etc.Modifiable BT name and password1 x Wired Audio Input (on rear PCB)USB and MicroSD card player (at bottom of unit)Built-in FM radio (87.5-108MHz)Music Player with EQ.12/24Hours Time DisplaySet timer to play/stop musicSupport RF remote controlScrew terminations on the rear of the unit for loudspeakers, power and wired line inputIncludes in-line power supply (100-240V) Technical Specifications4" Capacitive Touch Screen Power Supply: AC100-240V~50/60HzOutput Power: (RMS 2 x 15W @4Ω)Output Impedance: 8ΩExtended TF card up to 32GBT Transmission Distance: ≤ 10MProduct size:3.39" x 3.39" x 1.61" (86 x 86 x 41mm) Package Contents1 x Amplifier1 x Remote control (2 AAA battery are not included)2 x Screws for mounting1 x FM Antenna1 x Micro USB-USB connector1 x back box