This 30 secs recorder module can be used for music box, greeting card, guests greeting, photo frames, album, gift box and the other gifts for Mother's Day, Valentine's Day, Christmas, etc., and it is very easy to use. Voltage: 3 - 4.5V; Driving Loudspeaker: 0.25 - 2W / 8 ohm; Small Size (L x W x H): . 30x28x2mm Before you try, you need to prepare some components for your project, such as speaker, 2pcs spst buttons, somes 26 gauge or smaller wire, battery case, microphone and so on. The sound quality of the recording module is related to the quality of the speaker and the power of the battery. The speaker is of high quality and the sound is relatively clear. Also, the sound quality of the new battery is that of the old one. colour: as shown Material: ABS Package Contents: 10 x Voice Playback Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.