Safety First: This product has passed rigorous tests for its premium quality and safety system Flawless Compatibility: Only Compatible with hilips Norelco Oneblade QP2520, Multigroom Series MG3740 A00390 All in One Grooming Trimmer Electric Shaver Razor, Not Compatible with Philips QP2530, QP2630, QP2515, QP2620, QP2724, QP2834, QP1924, QP6510, QP6520 QP6531, QP6550, HQ8505, HQ850, HQ840! Offer 30-day and 12-month manufacturer support Output and Wattage: 4.3V-70mA 0.3W What you get:1 x AC Adapter. The charger is lightweight, suitable for carrying out, such as the office, the business trip, travel Compatible with Philips Norelco Oneblade QP2520, Multigroom Series MG3740 A00390 All in One Grooming Trimmer Electric Shaver Razor