This MicroSD card adapter makes your pi more slimmer. It’s easily to slide in to the Raspberry Pi, and just is half length than normal SD card. Also, you can lock and unlock MicroSD card without pop the adapter.
Active Buzzer is an integrated structure electronic transducers, DC voltage supply, widely used in computers, printers, copiers,
alarms, electronic toys, automotive electronic equipment, telephones, timers and other electronic products for sound device.