Product information: 
Recording mode One-key recording, voice-activated recording
Recording format WAV
Recording time 1200 (minutes)
Maximum number of recording files 99
Memory card type does not support expansion cards
Display No screen
Transmission interface USB 2.0
Microphone dual microphone
Number of microphones
Recording distance 10m
Video does not support video shooting
Battery Lithium battery
Shell material: zinc alloy
Colour: Black
Capacity 4GB, 8GB, 16GB, 32GB

Size Information:
Product size 39.5*30.5*6 (mm)

Packing: x1
Voice recorder x1