S4 Professional Voice Recorder Voice Control Recording High-definition Long-distance Noise Reduction

Product Information:

Recording mode: ADPCM recording 192Kbit, optional voice control recording 50DB
Recording format: MP3, WAV
Recording time: 2400 (minutes)
Maximum number of recording files: 9
Memory card type: does not support expansion cards
Display: OLED screen
Transmission interface: Headphone 3.5
Number of microphones: two-way
Recording distance: 5m
Video: Does not support video shooting
Battery: Lithium battery
Shell material: ABS