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PHILIPS SPEECHLIVE: Dragon Professional Anywhere & Dragon Legal Anywhere Bolt-ons Now Available!
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Hytera S1 License-Free Business Two-Way Radio (Pearl white)

by Hytera
Currently unavailable - call for info!
£0.00 | £0.00 ex. VAT

Coming soon! Call on 0121 456 7800 to speak with a product specialist. 

The Hytera S1 LF (License Free) redefines the business-ready analog radio. It blends classic radio elements with exquisite craftsmanship and forward fashion. From form factor to user experience, the S1 LF breaks with tradition to shape the trend of next-generation business radio - modern, simple, and timeless.

The Hytera S1 LF business two-way radio is also available in Metallic grey

Airy design

135 g in weight. All for one-hand operation on the go.

Light it up

Four LEDs tell you the radio status.

PTT Unlike Any Other

Another PTT in the front—enlarged size, circle shape, and phonograph-record-like texture.

Talk Freely

Cover 3-5 floors and 3-5 km in urban areas; meet the indoor communication needs of more than 10,000 square meters.

More Details

Outlast Your Shift

With a battery life of up to 27 hours (0.5W) or 15 hours (3W) of working time and 360 hours of standby time, your focus remains on the job, not the clock.

Dual PTT

Talk with either of two standby groups with simple button functionality. Use the button on the side to talk to one team, for example in the warehouse or the front entrance team, and the button on the front for the other team - like your sales execs or rear security staff.


Clone the S1 Mini Radio configuration data from one S1 device to many - all done in a flash!

Channel Copy

Quickly communicate with your existing radios, regardless of brands and models. 

Simple Management

Manage your radio with a phone, at your fingertips. Perform BT-enabled programming, batch configuration, frequency information backup, and more.

Model HYT-S31 LF
Frequency Range 400-470 MHz (Main Unit) /446 MHz
Channel Capacity 48
Zone Capacity 3
Channel Spacing 12.5kHz/20kHz/25kHz
Operating Voltage 3.8V (Rated)
Battery 2200mAh Li-Polymer
Battery Life (5/5/90 Duty Cycle, TX Power) 15 hrs (3W) /22 hrs (1W) /27 hrs (0.5W)
Frequency Stability ±2ppm
Antenna Impedance 50 Ω
Dimensions (HxWxD) 108*53*20mm (Without antenna)
Weight (With battery and antenna) 145 g (With belt clip) 135 g (Without belt clip)
BT BLE (only data) 5.0


Sensitivity 0.14μV
Adjacent Channel Selectivity ETSI: 60dB@12.5kHz / 70dB@20/25kHz
Intermodulation ETSI: 65dB@12.5/20/25kHz
Spurious Response Rejection ETSI: 70dB@12.5/20/25kHz
Blocking ETSI:84dB
Hum&Noise 40dB@12.5kHz; 43dB@20kHz; 45dB@25kHz
Rated Audio Power Output 0.5W
Rated Audio Distortion ≤5%
Audio Response +1~-3 dB
Conducted Spurious Emission <-57 dBm


Power Output 400-470 MHz: 1W / 3W (low/high) 446 MHz: 0.5W
FM Modulation 11K0F3E@12.5kHz 14K0F3E@20kHz 16K0F3E@25kHz
Conducted/Radiated Emission -36dBm<1GHz -30dBm>1GHz
Modulation Limiting ±2.5 kHz@12.5 kHz; ±4.0 kHz@20 kHz; ±5.0 kHz@25 kHz
FM Hum&Noise 40 dB@12.5 kHz; 43 dB@20 kHz; 45 dB@25 kHz
Adjacent Channel Power 60 dB@12.5 kHz; 70 dB@20/25 kHz
Audio Distortion ≤3%


Operating Temperature -10℃ ~ +55℃
Storage Temperature -30℃ ~ +70℃
ESD ±4kV (Contact) ±8kV (Air)
What's in the box
  • Hytera S1 LF two-way radio (Pearl white)
  • BC3 belt clip
  • RO3 carry strap
  • P2200mAh Li-polymer battery

The Hytera S1 LF business two-way radio is also available in metallic grey

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