Dr Pen A1W Rechargeable + Wired Dermapen Device Dr Pen A1W device can be charged. Pen A1-W Rechargeable + Wired Dermapen Device The Dr Pen A1-W device has the feature of being charged, it can be used wired when desired, it can also be used wirelessly by pre-charging it. You can do micro needling from 0.25mm to 3.0mm depth. Rechargeable + Wired Micro Needling Dermapen The device uses a new type of cartridge clipped needle. It has a blue cartridge and is easy to disassemble and attach.