Feature(may vary by option.)

●[4 Channel] Compact and lightweight amplifier, using imported 4 channel chip, scientific and humane acoustic principle design, suitable for 2 to 4 speaker has not bad sound quality. Premium aluminum alloy shell, sturdy and durable.
●[Diversified Functions] BT 5.0 amplifier, with coaxial input, optical input, shocking high power, HiFi sound quality, treble and bass adjustment, U disk, Memory Card (not included) playback and other functions.
●[Connectivity] The amplifier uses the latest BT version 5.0, providing a 30ft operating range. It can be connected to your music streaming device using BT, RCA sound cable. Also supports USB port, Memory Card (not included) port.
●[Optical Coaxial Transmission] BT amplifier provides lossless SPDIF super premium, HiFi optical transmission. With a high capacity transformer and no more than 0.2 percent harmonic distortion, it provides clear, distortion free sound.
●[Multi Application] Receiver amplifier supports multi sound device connection, compatible with phones, TVs, computers and other sound devices, lossless sound output, ideal for home theaters, audition rooms, HiFi, DIY and small offices.

[#3]

Description

Specification:

Item Type: BT Amplifier
Material: Aluminum Alloy
Model: X4
Color: Black
Power Supply: 100-240V
Remote Control Battery Type: Built in 160mAh CR2025 Button Battery (Included)
Input Port: Coaxial, RCA, Optical, U Disk, Memory Card (Not Included)
Input Voltage: DC 12V-18V ≥3A
Input Channel: 2.0
Output Channel: 4 Channels (2 Stereo and 2CH Subwoofer)
Frequency Response: 20Hz-20KHz
Output Power: 60W x 4
Distortion Rate: <0.2%
SNR: >80dB
Load Impedance: 2-8Ω
BT Version: 5.0
Input Impedance: 47K
Applicable Devices: Support Multiple Sound Devices Connection, Support Cell Phone, TV, Computer and Other Sound Devices

Package List:
1 x BT Amplifier1 x Sound Cable
1 x Adapter
1 x Power Cord
1 x Receiving Antenna
1 x Remote Control
1 x Manual