Specification: Brand: AUTSOME Color: Black Model:AK45 Voltage: DC 12V or AC 90-240V Impedance: 4-16 Ω Bluetooth: Support RMS power: 40Wx2 Peak power: 90W x2 Channel: 2.0 SNR: 85 db FM Frequency: 87.5-108MHz Frequency: 10Hz-20KHz Size: Approx. 18x14x6.5cm/ 7.09x5.51x2.6'' Model: AK-45 Size: 18*14*6.5CM Rated voltage: 12-240V Rated power: 40W*2 Rated frequency: 20-20KHZ Resolution: 47K Distortion rate: 0.50% SNR: 85DB Impedance: 4-16Ω Amplifier type: HIFI amplifier Material: Iron Interface Type: Clip Receive method: Audio cable Bluetooth USB SD radio Channel: 2.0 channel Whether to support APP: not supported Plug Type: EU/US/AU/UK Weight: 0.8KG Packing list: 1*Power Amplifier 1*Manual 1*Remote Control (Not included the battery) 1*Radio Antenna 1* Power Cord Note: 1.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) 3.There are no instructions included in this kit.If you want to know how to use or install it,please contact us by Email.We will provide help as much as possible.