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Board,  Audio Input  Board, Hands-free 3.7V-5V For Speaker Audio

<ul><li>It adopts 5.0 DC3.7V-5V power supply, and undergoes secondary development processing through peripheral hardware. The maximum power can be configured to reach 10W 5Wx2.</li><li>Can be modified for external power from the 3P block OUT audio output external.</li><li>Micro wave power switch control.</li><li>Hands-free calling and external buttons.</li><li>Power supply: DC voltage 3.7-5V. The current should be 1.5A-2A or higher.</li></ul>

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Specification: Features: It adopts 5.0 DC3.7V-5V power supply, and undergoes secondary development processing through peripheral hardware. The maximum power can be configured to reach 10W 5Wx2. Can be modified for external power from the 3P block OUT audio output external. Micro wave power switch control. Hands-free calling and external buttons. Power supply: DC voltage 3.7-5V. The current should be 1.5A-2A or higher. USB is the charging input the lithium battery can be charged from here when it is plugged into the red power socket; the red light is on when charging; the red light is not lit when the battery is fully charged. Specification: Material: PCB : 5.0 Voltage: 3.7V-5V Current: 1.5A-2A PCBA size: approx. 40 x 34 x 9cm / 15.75 x 13.39 x 3.54in including terminal Package Weight: approx. 40 g Package list: 1 x Power Board 1 x Cable Selection Criteria: 1. Power requirements: voltage DC DC voltage 3.7V-5V, voltage can not be higher than 5V; current 1.5A-2A; 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 not Please use with caution if it is stable or does not meet the requirements; otherwise it will always restart or the sound quality is not , such as broken sound/distortion. Speaker requirements: Satellite left and right channel sub-box speaker: select 4 ohm Ohm /5Wx2 full-range speaker special reminder if you use 3.7V lithium battery, please ensure that lithium battery and discharge can reach 1.5A, some lithium battery has voltage but current is unstable Please use caution if you can't meet the requirements; please choose 4 ohms Ohm / 3W x 2 for the speakers. 2. 3P socket OUT audio output: If you need to connect other power amplifiers can be connected from here intermediate audio ground, left and right are L and R respectively. connection: The mobile phone starts detection from the setup menu, so that the mobile phone is detected by the device, and then goes to the 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: It is not the smartphone system to enter the password -0000; the product device name YMX-868BT. Pay Attention: 1 Red 2P BAT is connected to the power supply positive DC 3.7V to 5V+, GND is connected to the negative pole; white 2P is connected from the bottom to the upper L-O-/L-O+, and the white 2P is R-O-/R-O+. 2 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 or instability, the motherboard will always restart or the sound quality is not / broken / distortion and other bad phenomena if you have this problem, please check your power; The voltage should not be higher than 5V, otherwise the main chip and the IC and related components will be damaged. Please pay attention. 3 Audio output: 3P block OUT audio output can be modified for external power , the middle is audio ground, left and right are L and R respectively.

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