The camera’s portrait mode and landscape mode can be switched freely. You need to press and hold the touch button on the back of the camera for about 8 seconds, the camera will automatically restart. If it's in landscape mode before switching, it will switch to portrait mode; if it's in portrait mode before,It will switch to landscape mode.
The camera may be muted, check whether the light on the nose of the camera is red, if so, press the touch button on the back of the camera to unmute.
Check whether the volume is not turned up to the maximum. There is a volume up button on the touch panel of the RM20. Please try again after turning it up to the maximum.
Covering area : 15-30㎡
Number of participants : 6-12 person
Distance : 6m
Frequency response : 50-16kHz
Directivity : Omnidirectional
Frequency response : 20-20kHz
Volume : 85dBA
Full duplex echo cancellation : support
Noise suppression : support
Gain control : support
Echo tail length : 300ms
Interface : 1 x USB Data Communication; 1 x 3.5mm audio interface
Key : Induction button
Telephone size (R x H) : 75mm x 30mm
Weight : 0.48kg
Packing catalogue : Quick User Guide, USB Cable, Omnidirectional microphone
Power supply : USB 5 V DC @ 450 mA Maximum
Support operation system : windows XP/Vista/7/8/10
Working temperature : 32–104°F(0–40°C)
Storage temperature : -22–131°F(-30–55°C)
Relative humidity : 20–85%(non-condensing)

RM20

RM20-USB Cable

RM20-Quick Start