Car 5 Inch 12V 220V Dual-use Two-Purpose 4110B-369 Dual-use Dual MIC With BT Car Digital Amplifier Mono Bluetooth Function Product Name: 20W Power Amplifier Board Speaker Bluetooth Amplifier USB Dac FM Radio TF Player Subwoofer Amplifier for Motorcycle Car Home for 5 Inch Speaker DIY 1.Equipped with wireless Bluetooth, radio, memory card / USB flash drive, audio mode. Suitable for installation: 5" subwoofer or speaker! 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. 3.Compatible with 99% of Bluetooth devices in the market. Supports cards, USB flash drives, mobile phones, computers, MP3s and other devices. 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. 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. Features: Equipped with wireless Bluetooth Radio function Memory card / USB flash drive Audio mode Specifications: Name: 5 inch / two use / 4110B-369 Suitable for installation: 5" subwoofer or speaker! Rated power: 20W Working voltage: 9 ~ 16V Sound conversion rate: 90% Input voltage: 12V / 220V Sound output: mono, can also use tweeter Sensitivity: 200hv Function 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 1*remote control 1*DC power cord 1*220V power cord 1*woofer cable Notes: This product does not support 24V voltage