Features:<br> 1. Customizable to record music or whatever you want to say for up to 4 minutes.<br> 2. Function: light sense to trigger button and play music.<br> 3. 3 button cell power supply, 16Ω 0.25W environmental speaker, the sound is large enough.<br> 4. This module has been welded with microphone, key, speaker and battery, etc., and can be used after receiving the product, which is very convenient.<br> 5. Great for Xmas cards, gift boxes, jewelry boxes, crafts, children's toys etc.<br> Specification:<br> Recording time: 4 minutes<br> Working voltage: 3 button batteries 3.0V-4.5V (Batteries are included)<br> You can repeat the recording, each recording will replace the last recording<br> Board size (L*W*H): 46 * 27 * 10mm/1.8 * 1.1 * 0.4in<br> Speaker Diameter: Approx. 40mm/1.6in<br> Speaker Thickness: Approx. 5mm/0.2in<br> Key Cable Length: Approx. 5cm/2in<br> Optional Play Mode: Single Play, Loop Play<br> Package List:<br> 1 * Greeting Card Module<br> Recording and Playback Operating:<br> 1. Press the record button, hear the "DI" sound and release the record button, then speak at the distance of 5-10 cm from the microphone to start recording.<br> 2. Press the record button again, and hear the drop sound release button to indicate that the recording is complete.<br> 3. Then press the play button again to play the currently recorded sound. Press the play button again during playback to stop the sound.<br> Note:<br> The key with red wire is recording key, and the key with black wire is playing key.<br> .