Features: 1. Customizable recording for up to 4 minutes—record music or any audio message. 2. Light-sensor activation: press the button to trigger playback. 3. Powered by three button-cell batteries; includes a 16Ω, 0.25W speaker with clear, audible sound output. 4. Pre-assembled module with built-in microphone, push-button switch, speaker, and battery—ready to use out of the box. 5. Ideal for greeting cards, gift boxes, jewelry boxes, crafts, and toys. Specifications: - Recording time: Up to 4 minutes - Operating voltage: 3.0V–4.5V (3 button-cell batteries included) - Board dimensions (L × W × H): 46 × 27 × 10 mm (1.8 × 1.1 × 0.4 in) - Speaker diameter: Approx. 40 mm (1.6 in) - Speaker thickness: Approx. 5 mm (0.2 in) - Button cable length: Approx. 5 cm (2 in) - Playback modes: Single play or loop play Package includes: - 1 × Greeting card sound module Recording & Playback Instructions: 1. Press the record button until you hear a “beep,” then release. Speak clearly within 5–10 cm of the microphone to begin recording. 2. Press the record button again and release after hearing a confirmation tone to end recording. 3. Press the play button to replay the recorded message. Press play again during playback to stop. Note: The red-wire button is for recording; the black-wire button is for playback.