For Lenovo ThinkPad L540 Microphone Board Filter-DJI Mic Series Power supply mode: 1 x

Power supply mode: 1 x 9V battery (not included in the product)

and does not take up space

USB 2/3/4 output: 5V/2A

Size: 39x33x33mm

and the use and maintenance performance is good

For Lenovo ThinkPad L540 Microphone Board Filter-DJI Mic Series Power supply mode: 1 x1. Microphone board replacement part 2. Replace your broken or unworkable part with a new one 3. Each item has been checked and in good condition before shipping 4. Completely fit and work. 5. Highly recommend professional installation. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts Specification: Package Weight One Package Weight 0. 01kgs 0. 03lb One Package Size 10cm * 5cm * 1cm