With the help of this sound module, a developer board can be transformed into a recording and playback device, e.g. via Raspberry Pi, Arduino or other microcontrollers and SBCs. The module can also be used as a stand-alone unit. Features - Operating voltage: 2.4 ... 5,5 V - interfaces: REC, Playback (1x), Playback (Repeat) - Sound recorder and player - ISD1820 chipset - Recording time approx. 8 - 20 seconds - with 0.5 W / 8 Ohm loudspeaker and microphone - Control via built-in keypad - Dimensions PCB (LxWxH): 43 x 39 x 11 mm Scope of delivery - Sound Module ISD1820 - small speaker - Connection cable