DBR-D1 Best Voice Activated Recorder Device - for Clear Audio Recording in Meetings & Lectures, Portable Digital Dictaphone Mini mp3 Player, Ultra Sensitive Microphone, Earphones, USB Cable, by dB9PRO USER GUIDE DOWNLOAD MANUAL Manual eBook How to upgrade the firmware on the dBR-D1 dB9PRO Model Comparison Chart MODEL NUMBER CAPACITY RECORDING BITRATE AUDIO STORAGE EXPANDABLE BATTERY LASTS BATTERY INDICATOR DISPLAY SCREEN SPEAKER EARPHONES MP3 PLAYER VR1.0 8GB 384kbps 48 hours No 7-10 hours 1 LED (does not indicate full charge) No No No No VR2.0 8GB 512kbps 36 hours No 10-14 hours 4 LEDS (each LED represents upto 25% charge) No No No No D-VRMP1 8GB 192kbps 96 hours No 20- 24 hours No No No Yes Yes dBR-D1 8GB 384kbps down to 32kbps (adjustable) 48-580hours (without additional TF card) – depending on chosen bitrate Yes, upto 32GB microSD/TF card 180 hours Yes, icon on screen Yes Yes Yes Yes