HF69B Dual Channel Stereo Bluetooth Speaker Amplifier

Descriptions:
Product modYoton: HF69B
Bluetooth power amplifier board: 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 a phenomenon of amplifying volume then staccato, it will be easy to burn the speaker.)
Supply voltage: 5V DC or 3.7V lithium battery (during using, if the connector cable is too long or the battery is dead or the
voltage is too low, the volume will be slightly up then staccato)
Supply current: >1A (if the current is too small, turn up the volume, it will appear staccato phenomenon)
Charging interface: When the charging interface is powered by the lithium battery, the supply voltage is 5V. And mobile phone
the charger can charge a single lithium battery (the maximum limitation voltage for battery is 4.2VDC by the
charging management circuit).
Bluetooth interface modYoton: PH2.0 2P
Battery interface modYoton: 2.54 2P