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 Christmas cards, creative gift boxes, jewelry boxes, crafts, children's toys, etc. 3-button battery-powered, 16 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 CardRecording time: 4 minutesWorking voltage: 3 button batteries (3.0-4.5V)(Included)Function: Trigger the button to play musicThe board has a length of 46mm, a width of 27mm and a height of 10mm.Horn diameter Approx. 40mmHorn thickness: Approx. 5mmButton cable length Approx. 10cmWeight: Approx. 22gPackage list:1 * Voice Greeting CardNote: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..