5V 2A USB Wall Adapter for Philips Sonicare 4100 Power ToothbrushDual Ports Wall Plug Compatible with Bitvae7AM2MPhilips Sonicare 110021003100 Electric Toothbrush.

Power compatible USB toothbrush charging cables with this compact dual-port wall adapter. Its two USB outputs let you connect up to two compatible electric toothbrush charging setups, while the slim design is convenient for home or travel.

• Listed output: 5V, 2A. The listing does not specify whether the 2A rating is shared between ports or available per port.
• Input: AC 100–240V, 50/60Hz. Check the physical plug type for your destination before travel.
• Connections: Two USB outputs.
• Listed compatibility: Bitvae and 7AM2M toothbrushes, plus newer Philips Sonicare 1100, 2100, and 4100 series models, including HX3641, HX3661, and HX3681, when used with the appropriate USB charging cable.
• Cable: USB charging cable sold separately. This item is a wall adapter, not a toothbrush charging base.
• Design: Slim and lightweight for carrying in a pocket, bag, or travel kit.

Check your toothbrush model and charging cable's power requirements before ordering. The title also mentions the Sonicare 3100 series, but that series is not confirmed in the detailed compatibility information.

The supplier lists overcurrent, overheating, and overcharging protection. Independent safety testing or certification details are not provided in the current listing.