One touch for record and save; Noise cantion Voice-activated record MP3 playback,A-B repeat Save real date & time for recording files Monitor record, hearing aid function High quality speaker Micro USB for connecting with PC Save record file at low battery Recording life for 8GB: 136hr-HP, 256hrs-SP, 2340hrs-LP Screenï¼Segment LCD screen Materialï¼Zinc alloy Power Supplyï¼Built-in rechargeable 230mah Lithium Battery Recording duration after full rechargeï¼HQ-15hours, LQ-20hours One sensitive microRecord formatï¼WAV Memoryï¼Built in flash memory up to 32GB Weightï¼46g