Simple designed, easy to use-thee most user friendly voice recorder Designed by airworthy, all operation buttons on the front side, operational logic like smart Phone. With graphic user guide and efficient after-sales team(support with video tutorial), you will master this machine in the shortest time. Well-made excellent gift for anyoneHigh capacity in battery and memory-built-in 800mAh rechargeable battery, support up to 45 hours continuous recording.8GB flash memory could save 580 hours recording files at most, in addition to this, R36 support up to 32GB TF card(in addition to purchase) expansion and voice activated recording. Bigger and bigger, get a super working life.1536Kbps dual-mic Pym High quality recording--r36 voice recorder equipped with dual sensitive microphone and Professional recording IC, support up to 1536Kbps Pym recording, provide a super clear recorded voice as if the speaker speaking standing by your side. Focus on high quality recording.Power-on password protection--3-digit password, 8000 combinations, without your password, no one could turn on the device and overheard Your recorded files. Three trial and error, device will auto turn off. Keep you Idea in a safe place, protect your Intellectual PropertyVariable play speed --16 levels to adjust the play speed, play faster, jump to the point you exactly want to playback; play Slowly let you hear every single word clearly. Combined with a-b repeat function, make this voice recorder work best. Restore the scene at that time and get what you want