Bluetooth Digital Amplifier Board 35W Audio Amplifiers With USB dac FM Radio For Car Speaker amplificador 8 inch 10 inch 12V 24V 220V three-purpose SF-2MIC car digital amplifier mono Bluetooth function Car Multimedia Player Car Intell Description: Product Description_x000D_ Product Name: 35W Power Amplifier Board Speaker Bluetooth Amplifier USB Dac FM Radio TF Player Subwoofer Amplifier for Motorcycle Car Home for 8 Inch/10 Inch Speaker DIY_x000D_ _x000D_ Description:_x000D_ 1.Equipped with wireless Bluetooth, radio, memory card / USB flash drive, audio mode. Suitable for installation: 8"/10" subwoofer or speaker!_x000D_ 2.High and low audio fresh sound quality. You can adjust the high and low frequency, choose different sound experience, and enjoy different sound quality._x000D_ 3.Compatible with 99% of Bluetooth devices in the market. Supports cards, USB flash drives, mobile phones, computers, MP3s and other devices._x000D_ 4.USB/TF card interface built-in MP3 player. Download your favorite music in USB flash drive or TF card, and enjoy your favorite music at any time._x000D_ 5.After the current passes through the power amplifier IC, 90%~95% is converted into a sound signal, and 5%~10% is converted into heat loss, and the sound is clear and comfortable. Stable quality, power saving, low energy consumption, low heat generation and long service life._x000D_ _x000D_ Features:_x000D_ Equipped with wireless Bluetooth_x000D_ Radio function_x000D_ Memory card / USB flash drive_x000D_ Audio mode_x000D_ Specifications: Parameters:_x000D_ Name: 8 inch 10 inch / three use / SF-2MIC_x000D_ Suitable for installation: 8"/10" subwoofer or speaker!_x000D_ Rated power: 35W_x000D_ Working voltage: 9 ~ 28.7V_x000D_ Sound conversion rate: 90%_x000D_ Input voltage: 12V / 24V / 220V_x000D_ Sound output: mono, can also use tweeter_x000D_ Sensitivity: 200hv_x000D_ Function description: Plug-in TF card, USB can be connected to external audio input, with radio function, wireless Bluetooth function, can connect with wired microphone Package Included: 1* power amplifier board_x000D_ 1* remote control_x000D_ 1* speaker cable_x000D_ 1* DC cable_x000D_ 1* power cord Notes: _x000D_ Due to the difference between different monitors, the pictures may not reflect the actual color of the item._x000D_ Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement._x000D_ Please leaving a message before you give the bad feedback, if the products have some problems._x000D_ Thanks for your understandings _x000D_