Connection Port: USB
Type: Voice Recorder
Number of recording channels: 2 (stereo)
Memory Type: Built-in + External
Internal memory: 4 GB
Memory Card Slot: Micro SD
LCD display: yes
Format support: MP3. WMA
Built-in speaker: yes
Use as a flash drive: yes
Recording frequency range: 50-20000 Hz
Voice activation function: yes
Changing the microphone sensitivity: yes
Recording with different quality: yes
Number of messages: 5000
Computer connection: yes
Interfaces: USB 2.0
Direct connection to USB: Yes
Microphone input: yes
Headphone output: yes
Battery indicator: yes
Remaining recording time indicator: yes
Working time: 55 hours
Battery Type: AAA
Number of batteries: 2
Functions: indexing each record. button blocking. pause. password protection