ABS-2250 Bluetooth KTV conference card package amplifier Power: 250W+350W Smart wireless Bluetooth function Recording output interface, which can realize recording function Imported power tube can be connected to 4 speaker outputs Built-in fan for heat dissipation, the performance of the whole machine is more stable Two microphone input interfaces at the front and rear, singing joyfully High-quality low-leakage toroidal transformer, strong power output Full-featured electronic protection system, so you can use it with peace of mind Machine size: 480x348x110mm One for two, one for four and other combinations can be combined with speaker amplifiers, so that you can buy more value for money