This is the first and the only one recording MP3 pen you can pick up recording sounds very strong and clear within 35 feet in distance. 1) Recording can be paused and resumed as you wish during the recording. And the device will not turn off automatically even when you pause the recording for long time. 2) German high sensetive Mini Microphone and the Mic hole is on the top of the watch case, the Mic specification is 128kbps and 32 KHz, can pick up recording sounds crystal clear within 35 feet in distance. 3) Continual recording time (battery in full charged) for 512MB is over 7 hours and for 1GB is over 8 hours (Recording file format: WAV, MP3) 4) With all the music playing function that regular MP3 player has. 5) Watch face color availability: White, blue, black 6) Watch case & band material: Can be brass and Stainless steel 7) Watch case & band color: Can be silver or golden. Memory size available for 128MB, 256MB, 512MB, 1GB, 2GB. Packing: 36 PCS/Carton Carton size: 46 x 35 x 33cm N. W: 18 kgs G. W: 19 kgs