Product Description
•Type:DVR_556C/556D/556A Main functions; •Nami glassy panel of the unit,advanced,enduring •Voice controll recording;Four recording modes for quality selection(24ktone,16ktone,6.4ktone,4.8ktone)the longest recording time is 1840 minutes;Mp3 music enjoyment;Voice repeating •Clock function(display hour/minute for 24 hour kind)clock alarming and voice recording according to the setted time •Recording the telephone conversation •Built-in highly sensitive microphone and loudspeaker

Product Specification/Models
•Specification:4hours/8hours/16hours/32hours •Volume:100mm*29mm*16mm/556A:105mm*29mm* 16mm; •Weight:556C:33g/556D:32g/556A:30.5g

Other Information
•Two same units allow information transmission with each other and share the resource •Transmission by USB.Files can upload to the computer to play or keep for ever