Sell ZK-MT21 2.1 Channel Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W Power Audio Amplifier Board Speaker with Antenna best price

[2-in-1] High quality power amplifier board. With AUX and Bluetooth two audio input methods, 2-in-1. 5.0 Bluetooth version, the transmission efficiency is higher, the transmission distance is farther [High Performance] Bluetooth audio amplifier ule 2.1 channel, Max output power 2X50W+100W. With antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference ability is strong [Protection Mechanism] With short-circuit protection as well as overcurrent, overheating, and anti reverse connection protection to prevent total failure. In the event of an overload, the device reports the fault condition to the processor to protect itself from damage [High Quality] It adopts copper DC connector and fence type terminal. It can withstand large current, no heat, no damage to the wire. [Application] With bass, treble, subwoofer frequency and volume control, easy to adjust volume, enjoy the music tone what you want. Widely used in store solicitation, home theater, square speakers, etc el: ZK-MT21 Bluetooth Version: 5.0 (without occlusion 15m) Audio Input: AUX + Bluetooth Channel: 2.1 Input sensitivity: 500mV Adaption Supply Voltage: 12-24V / 5A above (Do not connect to 24V battery pack) Speaker: 20-100W, 4-8Ohm Output Power: max 50W @R&L channel; max 100W @subwoofer Protection Mechanism: anti reverse connection, overheating, overcurrent, short circuit protection colour:Black Material:plastic size:93 x 90 x 22mm Package Contents: 1 x Amplifier Board 1 x Antenna with baseOnly the above package content, other products are not included. Note: Light shooting 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.