Hytera EM31 Type C Earphone for S1 / S1 Pro
The Hytera EM31 is a professional C-earset designed for Hytera's S1 and S1 Pro radio models. It offers a discreet and comfortable solution for continuous communication, with an optional in-line microphone and push-to-talk (PTT) transmit button.
Weighing approximately 11 g and featuring a compact, ergonomic design, the EM31 allows you to carry the radio without the earpiece becoming a hindrance. It accepts a 3.5 mm (4-pin) jack connector, has a speaker impedance of ~ 150 O ± 20% , and a frequency response of ~ 118 dB ± 3 dB . Operating temperature ranges from -20 °C to +60 °C .

Some of the features offered by the Hytera EM31 are:
- C-earset design (ear hook) for extended comfort
- Lightweight (~11 g) for greater comfort
- Connector: 3.5 mm 4-pin jack
- Compatible with Hytera S1 / S1 Pro radios
What does the Hytera EM31 include?- 1 Hytera EM31 type C earphone
Technical and mechanical characteristics
- Manufacturer: Hytera Communications Co., Ltd.
- Model: EM31
- Type: Type C headset for professional radio
- Compatibility: Hytera S1 / S1 Pro radios
- Connector: 3.5 mm jack (4-pin)
- Speaker impedance: 150 O ± 20%
- Speaker frequency response: 118 dB ± 3 dB
- Weight: ~11 g
- Operating temperature: 20 °C to +60 °C
- Color: black
- Recommended use: security, events, hospitality, logistics and professional communications
The Hytera EM31 is a professional C-earset designed for Hytera's S1 and S1 Pro radio models. It offers a discreet and comfortable solution for continuous communication, with an optional in-line microphone and push-to-talk (PTT) transmit button.
Weighing approximately 11g and featuring a compact, ergonomic design, the EM31 allows you to carry the radio without the earpiece getting in the way. It accepts a 3.5mm (4-pin) jack connector, has a speaker impedance of ~150 O ± 20%, and a frequency response of ~118 dB ± 3 dB. Operating temperature ranges from -20°C to +60°C.