3Pcs Sanwu Hf69B 6W 6W Dual Channel Stereo Bluetooth Speaker Amplifier Board Power By Dc 5V Or 37V Lithium Battery With Charging Management

Description : Product model : 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 amplify 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 charging interface is powered by the lithium battery, the supply voltage is 5V. And mobile phone charger can charge a single lithium battery (the maximum limitation voltage for battery is 4.2VDC by the charging management circuit). bluetooth interface model : PH2.0 2 Lees meer over de 3Pcs Sanwu Hf69B 6W 6W Dual Channel Stereo Bluetooth Speaker Amplifier Board Power By Dc 5V Or 37V Lithium Battery With Charging Management van huismerk in de productgroep elektronica