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https://www.hytera.com/en/product-new/accessories/audio/sm13m1.html

Specifications of Hytera SM13M1
Specifications
Dimensions82.0*58.0*27.0mm
Weightabout 140g
Colorblack
PTT Keyavailable
Emergency Keynone
Accessory Interface3.5mm
Connector2-pin
Microphone Sensitivity-52±3dB@1kHz 3.0V 2.2K;0dB=1V/Pa
Speaker Power1 W (rated); 2 W (max.)
Speaker Impedance16Ω±15%@1.5kHz
Speaker Frequency Response91±3dB@1kHz at 1w/30cm
IP RatingIP55
Operating Temperature-30~60℃
Storage Temperature-40~85℃

Hytera Communications Corporation Limited (SZSE: 002583) is a leading global provider of professional communications technologies and solutions. With voice, video and data capabilities, we provide faster, safer, and more versatile connectivity for business and mission critical users. We enable our customers to achieve more in both daily operations and emergency response to make the world more efficient and safer.