5W Stereo Bluetooth Amplifier Board
Stereo Bluetooth Amplifier Board Single product MOQ of this board is 100pcs, however it is negotiable if you also order with other products. Bluetooth Module Operation: Turn on Bluetooth on your phone, scan for devices, find "DW-CT14+", and tap to connect. This module adopts Bluetooth 4.2. It is compatible with all mainstream mobile phones and Bluetooth adapters on the market. The transmission distance is about 15 meters in an open area. It supports automatic reconnection to paired devices and automatic music playback. Warning: The charging port of this product adopts a current-limited charging mode with no built-in charging management circuit! For personal and property safety, please only use formal lithium batteries with a protective circuit board from certified manufacturers. Our company shall not be liable for any losses caused by improper use! Packing List: Main board + connecting wires Instructions for Use: - This stereo bluetooth amplifier board blutooth version: 4.2 - Supports USB audio card, driver-free and plug-and-play (under normal lithium battery power supply). - Built-in dual 5W power amplifier circuit. Do NOT connect an external power amplifier additionally! The outputs of two amplifiers cannot be connected in parallel, nor can their negative poles be connected together; otherwise, the power amplifier chip will be damaged. - Two speakers (2~8Ω, 3~10W each) can be connected separately. Recommended specifications: 4Ω 5W and 4Ω 10W. Stereo output is supported. - Maximum operating current: 5V 2A. Using a regulated power supply of 5V 2A or higher will deliver better sound quality. - Recommended power supply: 3.7V lithium battery (must be equipped with a protective board). The onboard USB port supports lithium battery charging, and can also be used for power input via a 5V adapter. Do not use dry batteries, power banks, multi-function transformers or any unstable power supplies with fluctuating voltage/current! - During installation, keep the Bluetooth antenna away from metal components to avoid reducing the wireless transmission distance. Technical Notes (Standard Terminology): - Ω = Ohm (impedance unit) - W = Watt (power unit) - Current-limited charging / Protective circuit board / Regulated power supply (industrial standard English) Read the full article
