Working voltage: DC12V-24V Product net weight: 297.9g Product model: Mini Bluetooth digital power amplifier Standard version -M19/ Bluetooth version -M19 BT Audio input: , coaxial, optical fiber, Bluetooth (Bluetooth version only) Audio output: Banana speaker jack/3.5mm AUX Power amplifier chip: I PA3116D2x2 Maximum: Output power: 100W+100W (24V @4-80) Total harmonic distortion: s0.01% Number of channels: 2.0 Bluetooth version: V5.3 Pairing name: M19 BT (Bluetooth version only) Transmission distance: about 10-30m (without obstacles) Audio codec: , AAC Output impedance: 192KHz sampling rate, 24bit4-8 Rated sound frequency response range: 18Hz-25kHz High and low frequency range: 10dB Signal to noise ratio: 298dB(A) Input sensitivity: 1.1V Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage: AC110V Colour:Black Material:ABS Size:about 119x111.8x41.6mm (length/width/height) Package Contents: 1 set x amplifier audio Only the above package content, other products are not included. Note: Light reflection 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.