After Sales SupportOur Products are 100 gate-keeping before sale, if you have any questions, You can communicate with us online by email or QA. There is no reason for return or exchange of the product within one year, please feel secure in your purchase!. Safe ChargingAll chargers are CE FCC certified with over-voltage, over-load, over-current, short circuit protection. When it stops working, it will be automatically powered off to protect the inside battery from over-discharge and damage, preserving the lifespan of the battery. NOTEThis charger Not Compatible with QP2630, QP2724, QP6505, QP6510, QP6520, QP6530, QP6550, QP6620. Please check your shaver model and and make sure the interface is consistent before purchg. Wide CompatibilityElectric shaver charger compatible with Philips QP2520, QP2620, QP2511, BT3206, BT3208, BT3203, BT3215, BT3216, BT3226, BT405, MG3710, MG3720, MG3730, MG5720, MG5730, MG5735, MG5740, RQ310, RQ311, RQ312, RQ320, RQ328, RQ330, RQ331, RQ338, RQ350, S1000, S1010, S1020, S1050, S1060, S300, S301, S310, S520 and more. Product SpecificationInput: AC 100-240V 50 60Hz, output: 4.3V 70mA cable length: 120cm, replacement model: A00390. Please Note: It's not for 15 V and 8V Shaver.