3pcs SANWU HF69B 6W+6W Dual Channel Stereo bluetooth Speaker Amplifier Board Power By DC 5V Or 3.7

Description:

Product model: HF69B

bluetooth power amplifierboard: Small standby heating,good-quality stereo,suitable for small bluetooth speakers.

Output power:6W + 6W

Dimensions: 70 x 40mm

Stereo: Dual channel stereo

Applicable speaker impedance: 6 ohms, 8 ohms (if the horn impedance is too small, there will be aphenomenon ofamplifyvolume then staccato, it will be easy to burn the speaker.)

Supplyvoltage: 5V DC or 3.7V lithium battery (during using, ifthe connector cable is too long or the battery is dead or the voltage is too low, the volume will be slightly up thenstaccato)

Supplycurrent: >1A (if the current is too small, turn up the volume, it will appearstaccatophenomenon)

Charging interface: When charging interfaceis powered by the lithium battery,the supplyvoltage is 5V. Andmobile phone charger can charge a single lithium battery (the maximum limitation voltagefor battery is 4.2VDCby the chargingmanagement circuit).

bluetoothinterfacemodel:PH2.02P

Batteryinterfacemodel:2.542P
Note:

1. When the switchisON,the Micro USB port is thecharging port, it will work if powered by the lithium battery. When the switch is OFF,the Micro USB port is the power supply port, it doesnat need to connect withlithium battery.

2. If turn up the volume during using,the horn willappearstaccatophenomenon, please check the power supply.If the output current of power supply is not enough, the intermittent sound will occur.

3. It is recommended to use the lithium battery with a protection board.

Package included:

3 xHF69B bluetooth amplifier board




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