Specification:
Origin: Mainland China
Type: Drive IC
Power amplifier chip parameters:
Product name: Class D 45W Bluetooth-compatible power amplifier board
Product color: black
Power interface: KF301 terminal block
Input voltage: DC 12V-28V
Input current: above 3A
Power amplifier chip: TPA3118
Output power: 4 Ohms 2x45W/8 Ohms 2x30W
SNR: 102Db
THD+N: 0.1%
Input interface: 3.5mm stereo input/Bluetooth-compatible 5.0 wireless connection
(The function buttons are only available when using Bluetooth-compatible connection. The buttons are not available when using 3.5mm audio cable connection.
Bluetooth-compatible connection is not available when using 3.5mm audio cable. If you want to use Bluetooth-compatible connection, disconnect the 3.5mm audio cable of the amplifier
Output interface: KF301 5.0mm terminal block
Product size: 71mm * 45mm/2.7*1.77in
Package size: 150mm * 100mm/5.9*3.9in
Product weight: 39g

Bluetooth-compatible parameters:
Bluetooth-compatible version: V5.0
Signal to noise ratio: 90DB
THD+N:-70DB
Crosstalk: - 86db
DNR: 91db
Transmission protocol: A2DP/AVCTP/AVDTP/HFP
Transmission distance: about 10m (the shorter the distance, the better the stability)
Key control: single press on/up/down, long press off volume/up/down.

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.