CREATIVE KEYCHAIN DESIGN- Size: 2.4 * 0.9 * 0.4 inches. You can hang it on the keychain for easy carrying. Make sure you can use it anytime, anywhere, and avoid losing any important information.CLEAR RECORDING QUALITY- 192kbps recording bit rate and noise reduction system provides high quality recording for you. With 16GB of internal memory, , enough space for 28 hours continuous recording and store up to 176 hours recordings file.EASY TO OPERATE- One Key to record/save. Smart battery control help you save recording file when the recorder power is low. For beginners, old people and students are easy to operate. Connect the recorder to computer, you can play, move or delete recording files as you want.WITH VOICE ACTIVATION- Two modes of continuous recording and voice activated recording, which can be used in different environments and quickly capture the speaker's words. The voice activation function can help you to avoid the long silent recordings, and save the recorder storage.