Specifications： Flash Disk Capacity: 32/64GB Color: Silver，Black Material: Metal & Plastic Recording Bit Rate: Default 192Kbps Recording Format: WAV Music Format: MP3 / WMA / WAV Power Supply: Built-in 3.7V/85mA Lithium Battery Size: 8.5 * 2.5 * 1cm / 3.3 * 1 * 0.4in Weight: 52g / 1.81oz Features： (1) Continuous Record & Voice Activation Mode.Easy and convenient for your study, meeting, lectures or interviews. (2) Silver metal casing keychain Durable, rugged metal frame,Multifunction for Voice recorder, MP3 Player. (3) 32/64GB storage provides 90 hours audio capacity.Powerful 8 hours continuous recording.Long Battery Life & Fast Charge,7-day standby time. (4) On-the-Go Covert Recording : 3 easy operational buttonsto make your recording and playing clear. (5) Date/time stamp (for Windows Only): Comes with a software program to set time/date.for MAC/Windows compatible. Package included： 1 x Voice Recorder 1 x English User Manual 1 x USB Cable 1 x Earphone Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding. Continuous Record & Voice Activation Mode.Easy and convenient for your study, meeting, lectures or interviews. Silver metal casing keychain Durable, rugged metal frame,Multifunction for Voice recorder, MP3 Player. 32/64GB storage provides 90 hours audio capacity.Powerful 8 hours continuous recording.Long Battery Life & Fast Charge,7-day standby time. On-the-Go Covert Recording : 3 easy operational buttonsto make your recording and playing clear. Date/time stamp (for Windows Only): Comes with a software program to set time/date.for MAC/Windows compatible.