This is a special recording chip for greeting cards. The recorded sound can be played. Ideal for DIY homemade greeting cards, gift boxes, invitations, student hand-made products, etc. The operating is simple and there are no complicated processes. Features: 1. You can record music or what you want to say according to your requirements for up to 120 seconds. 2. Function: trigger the button to play music 3. Built-in replaceable button battery for power supply, very easy to use. 4. Suitable for DIY homemade greeting cards, gift boxes, invitations, handmade products, etc. 5. The recording can be repeated, and each recording will overwrite the last recording. Specification: Color: green (button version) Recording time: 120s Working voltage: 3 button batteries (3.6-4.5V) Board size: 46 * 27 * 10mm / 1.8 * 1.1 * 0.4in Horn diameter: 40mm / 1.6in Thickness: 5mm / 0.2in Button line length: 5cm / 2.0in Weight: approx. 20g Package list: 1 * Greeting Card Chip Recording and playback operations: Press and hold the record button, and after listening to the beep sound, speak to the microphone and start recording. After pressing the recording button again to hear the beep sound, release the recording button and the recording is completed. Press again to play the currently recorded sound, and trigger a button to play the recorded sound. .