Fosi Audio ZK1002D 100W x2 Bluetooth Amplifier Send You Wireless Stereo Receiver 2-Channel Hi-Fi Digital Amplifier Features.Bluetooth 5.0 wireless streaming range up to 39ft(12m), using two TPA3116D2 chips to bring better experience, designed for customers who pursue HiFi sound;.100W MAX output x 2 (4 ohms, 20 Hz - 20 kHz, less than 0.1% THD), with DC24V power supply (only for passive speakers, not for active speakers).3.5mm AUX, USB, Bluetooth input available. Plug in AUX cable, automatically switch to AUX input, Disconnect Bluetooth:Suitable for your PC/laptop, just use USB cable to connect. Better sound quality without drivers;.Emphasize.Model: ZK-1002DChip: TPA3116D2Input Mode: Bluetooth and 3.5mm AUX and USBOperating Voltage: DC 5V-24VChannels: 2-channel stereo outputBluetooth version: Bluetooth 5.0Bluetooth Transmission Distance: 39 feetPower Output: 100W x 2Terminal Impedance: 2-8 OhmsPackage Includes.ZK-1002D Bluetooth amplifier x1DC19V/4.7A Power Adapter (US Standard) x1