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The AV-660BT is a compact Hi-Fi stereo karaoke audio amplifier designed for home, car, meetings, and small theatre applications. It supports Bluetooth wireless streaming, FM radio, USB and SD card playback, and dual microphone inputs with echo control. Equipped with bass and treble adjustment, LED digital display, remote control operation, and dual power input (AC & DC 12V), this amplifier delivers clear and powerful sound performance for multiple audio setups.

Key Features

• 2.1 Channel Hi-Fi Stereo Output

• Built-in Bluetooth for wireless music streaming

• USB & SD Card MP3 Playback

• FM Radio with External Antenna

• Dual Microphone Input with Echo Control

• Bass & Treble Adjustment (EQ)

• LED Digital Display

• Remote Control Support

• AC 110V/230V Voltage Conversion

• DC 12V Input for Car Use

Technical Specifications

Amplifier Type:
Hi-Fi Stereo Karaoke Power Amplifier

Number of Channels:
2.1 Channel

Output Power:
Approx. 2 × 40W

Supported Audio Formats:
MP3

Connectivity:
Bluetooth, USB, SD Card, AUX

Frequency Range:
20Hz – 20kHz

Input Options:
Bluetooth, USB, SD Card, FM, AUX, Microphone

Microphone Input:
2 × 6.35 mm Mic Input

Controls:
Master Volume, Mic Volume, Echo, Bass, Treble

Display Type:
LED Digital Display

FM Radio:
Yes

Remote Control:
Yes

Speaker Impedance:
4Ω – 16Ω

Power Details

AC Input Voltage:
110V / 230V AC (Selectable)

DC Input Voltage:
12V DC

Power Consumption:
Low Power Consumption

Material & Build

Body Material:
Metal

Color:
Black / Silver (As Available)

Mounting Type:
Desktop

Applications

• Home Audio System

• Karaoke Setup

• Car Audio System

• Small Theatre

• Conference & Meeting Rooms

• Shops & Offices

Packaging Includes

• 1 × AV-660BT Amplifier

• 1 × Remote Control

• 1 × FM Antenna

This Battery Voltage and Capacity Meter is used to monitor real-time battery voltage and charge level. It features a clear LCD display with green backlight showing voltage (V) and battery percentage (%). Suitable for 12V, 24V, and 48V battery systems. Ideal for solar systems, inverters, UPS, electric vehicles, and battery-powered equipment.

Specifications

• Meter Type: Battery Voltage & Capacity Meter

• Display Type: LCD

• Backlight: Green

• Voltage Range: DC 6V – 63V

• Supported Battery Voltage: 12V / 24V / 48V

• Measurement: Voltage (V), Battery Level (%)

• Accuracy: ±1%

• Connection Type: Wired

• Mounting Type: Panel Mount

• Housing Material: ABS Plastic

• Color: Black

• Operating Temperature: -10°C to +60°C

Features

• Real-time voltage and battery level display

• Clear LCD with green backlight

• Compact size and easy installation

• Low power consumption

• Stable and reliable performance

This digital Bluetooth power amplifier board is designed for home audio systems, car audio, and DIY speaker projects. It supports Bluetooth wireless audio streaming, USB and TF card playback, and AUX input. The board features dual microphone inputs with echo (reverb) control, making it suitable for karaoke and PA applications. It operates on DC 12V, DC 24V, and AC 110–220V power supply. Compact panel-mount design allows easy installation in speaker cabinets.

Specifications

Type: Digital Power Amplifier Board
Power Supply: DC 12V / DC 24V / AC 110–220V
Audio Input: Bluetooth, USB, TF Card, AUX (L/R)
Microphone Input: Dual Mic Input (MIC1, MIC2)
Reverb / Echo: Yes
Controls: Master Volume, Mic Volume, Mic Echo, Bass, Treble
Remote Control: IR Remote Supported
Mounting Type: Panel Mount
Material: Metal Front Panel with PCB
Color: Black
Dimensions: 17.3 cm × 8 cm

Applications

Home Audio System
Car Audio System
Karaoke Speaker
DIY Speaker Cabinet
PA System

This Bluetooth MP3 Decoder Board with built-in 2x40W power amplifier is designed for DIY audio systems, speaker cabinets, home audio, and car audio applications. It supports Bluetooth wireless audio, USB drive, TF/SD card, AUX input, and FM radio. The module features bass and treble control knobs, LED digital display, IR remote control support, power-off memory, call recording, and alarm clock function. It operates on a wide DC voltage range from 7V to 23V, making it suitable for various power supply setups.

Technical Specifications

Product Type:
Bluetooth MP3 Decoder Board with Amplifier

Amplifier Type:
Class D Digital Power Amplifier

Output Power:
2 x 40 Watt (Max)

Channel Count:
2 Channel (Stereo)

Supply Voltage:
DC 7V – 23V

Supply Type:
DC Power Supply

Audio Input Modes:
Bluetooth, USB, TF Card, AUX, FM Radio

Bluetooth Version:
Bluetooth 5.0 (Typical)

FM Frequency Range:
87.5 – 108 MHz

Load Impedance:
4 Ohm – 8 Ohm

Audio Controls:
Bass Control, Treble Control, Volume Control

Display Type:
LED Digital Display

Recording Function:
Supported (Call Recording)

Memory Function:
Power-off Memory Supported

Additional Functions:
Alarm Clock, IR Remote Control Support

Supported Audio Format:
MP3

Connector Type:
Pin Terminal / Wire Connector

Mounting Type:
Panel Mount

Material:
ABS Plastic Body

Color:
Black / Silver

Usage / Applications

• DIY Speaker Systems

• Home Audio Systems

• Car Audio Systems

• Amplifier Projects

• Bluetooth Music Systems

Package Includes

• 1 x Bluetooth MP3 Decoder Board

• 1 x IR Remote Control

• Connecting Wires