Item Type: Power Amplifier Module _x000D_ Material: PCB_x000D_ Purpose: Suitable for operation by college students, engineers, technicians, etc._x000D_ Working Voltage: DC 8~24V_x000D_ Bluetooth Version: 5.0_x000D_ Transmission Distance: Approx. 10 ~ 15meter / 32.8 ~ 49.2ft (visible without obstruction)_x000D_ Number of Channels: Dual channel (stereo)_x000D_ Output Power (at 1KHz): _x000D_ 2 x 16W at 12V 4_x000D_ 2 x 10W at 12V 8_x000D_ 2 x 15W at 16V 8_x000D_ 2 x 20W at 20V 8_x000D_ 2 x 30W at 24V 8 (heat sink required)_x000D_ Adapted Speakers (30W~150W): _x000D_ 4 (8~12V power supply)_x000D_ 8 (8~24V power supply)_x000D_ 16 (8~24V power supply)_x000D_ Module Protection Mechanism: Power supply reverse connection protection, short circuit protection, self-recovery overheating protection. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store