Feature: A 4-channel Bluetooth amplifier is a versatile audio device that offers multiple ways to play your favorite music. With four channels, it provides a powerful output that can connect to multiple speakers, for a full surround sound experience.     It also features Bluetooth connectivity, allowing you to wirelessly stream music from your phone, tablet, or other Bluetooth-enabled devices. Additionally, You can also insert an SD card into the amplifier to play music stored on the card.     Additionally, the FM radio function allows you to tune in to your favorite radio stations and listen to them through the amplifier. The USB function lets you connect a USB device to play music stored on it.          Supports Bluetooth connectivity     Small size and easy to carry     There are four outgoing channels     Maximum power per channel up to 60w     Perfect for use in the car as well as at home     size: 17 x 10 x 4.5cm     Material: Metal     colour: black          Package Contents:      1 x audio amplifier          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.                             4-Channel 60W High Power Car Bluetooth Audio Amplifier For Car Audio Modification Home                        Feature: A 4-channel Bluetooth amplifier is a versatile audio device that offers multiple ways to play your favorite music. With four channels, it provides a powerful output that can connect to multiple speakers, for a full surround sound experience.     It also features Bluetooth connectivity, allowing you to wirelessly stream music from your phone, tablet, or other Bluetooth-enabled devices. Additionally, You can also insert an SD card into the amplifier to play music stored on the card.     Additionally, the FM radio function allows you to tune in to your favorite radio stations and listen to them through the amplifier. The USB function lets you connect a USB device to play music stored on it.          Supports Bluetooth connectivity     Small size and easy to carry     There are four outgoing channels     Maximum power per channel up to 60w     Perfect for use in the car as well as at home     size: 17 x 10 x 4.5cm     Material: Metal     colour: black          Package Contents:      1 x audio amplifier          Only the above package content, other products are not included.