Bo mạch khuếch đại âm thanh kỹ thuật số Bluetooth 5.0 dc3.7-5v

Description:
Color: green
Material: circuit board
Power: 2*5W
Bluetooth version: 5.0
Voltage: DC3.7-5V (cannot be higher than 5V)
Current: 1.5A-2A or above (specially reminded that if using 3.7V lithium battery, please ensure that lithium battery and discharge can reach 1.5A, some lithium battery has voltage but current is unstable or can not meet the requirements, please use it with caution; otherwise it will restart or Poor sound quality, bad sound, distortion, etc.)
Introduction: This product adopts 5.0 Bluetooth DC3.7V-5V power supply through secondary hardware for secondary development processing. The maximum power can be configured to reach 10W (5W*2), and can also be modified for external power amplifier (from 3P socket OUT audio output external)
Claim:
3P socket OUT audio output: If you need to connect other power amplifiers, you can connect from here (intermediate audio ground, left and right are L and R respectively)
Bluetooth connection: The mobile phone starts Bluetooth detection from the setup menu, so that the mobile phone is detected by the device, and then goes to the Bluetooth menu - search for the device or the paired device. After searching (YMX-868BT) "Touch Pairing", it also hears "Connected successfully or prompts" to complete the pairing;

Note:
Not a smartphone (fo Android) to enter the password -0000; product Bluetooth device name YMX-868BT
Pay attention:
Red 2P seat BAT is connected to the power supply positive DC3.7V to 5V+, GND is connected to the negative pole; white 2P seat from bottom to top L-O-/L-O+ is connected to the speaker 1, white 2P seat R-O-/R-O+ is connected to the speaker

Product size: 4.1*3.7*1cm

Working voltage lithium battery 3.7V, or regulated power supply DC DC 4.5-5V, current (600-700MA when connected to a speaker; 1.5-2A for two speakers)
Lithium-powered speaker with 4 ohms 3W+3W, voltage regulator Power 5V speaker with 4 ohms 5W+5W
If the current is not enough, there will be a jump or Bluetooth instability, the motherboard will always restart or the sound quality is not good / broken / distortion and other bad phenomena (if you have this problem, please check your power)
The voltage cannot be higher than 5V, otherwise the main chip and the power amplifier IC and related components will be damaged

Packing listing:
1 * Audio Power Amplif