DIY Greeting Card Chip 4 Minutes Recordable Voice Sound Chip Voice Greeting Card for Holiday Features: 4 minutes - Record music, or what you want to say, up to 4 minutes, depending on your requirements. Widely used - Can be used for Xmas cards, gift boxes, jewelry boxes, crafts, children toys, etc. 3-button battery-powered, 16Ω 0.25W green speaker with loud sound. Control the voice movement with button induction. The cable length is designed for your convenience. The recording can be repeated, and each recording will overwrite the last recording. Specification: Type: Voice Greeting Card Recording time: 4 minutes Working voltage: 3 button batteries (3.0-4.5V)(Included) Function: Trigger the button to play music The board has a length of 46mm, a width of 27mm and a height of 10mm. Horn diameter Approx. 40mm Horn thickness: Approx. 5mm Button cable length Approx. 10cm Weight: Approx. 22g   Package list: 1 * Voice Greeting Card Note: Please allow slight error due to manual measurement. Thanks for your kind understanding. Recording and Playback Operations: 1. Press and hold the record button, hear the ''DI'' sound and speak to the microphone to start recording. 2. Press the record button again to hear the sound of the drop. Release the record button to indicate that the recording is complete. 3. Press again to play the currently recorded sound, and play the recorded sound once when the button is triggered.