it is 1 year old product. i brought it 2399 rupees 1 year ago . car stereo amplifier. output 180 w ( 45 × 4 channel) . sound quality is too good , super bass and no distrotion in sound. it is modified amplifier, Bluetooth board added to it and u will get one remote to control the bluetooth ( i need to find it ) . u can use pendrive here and sd card also . it supports aux cable. u can connect it to your car or u can use it in home , just u need 12 v 10 amp smps power supply and 4 speakers . u can connect it to the tv and phone also in home .