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Digital Walkie Talkie


Product origin : CHINA

Delivery time : 3-30 DAYS

Supply capacity : 30000 SETS/MONTH

LishengIP67 DMR Portable Radio DM-R88

DMR True 2-Slot ● True IP67 Waterproof

DMRTrue 2-Slot

With this feature, the free slot can be allocated to a member that needs to communicate, effectively enhancing frequency efficiency and allowing you to communicate timely under emergency situations.


True IP67 Dustproof and Waterproof

Radio body sealed fully to deliver IP67 waterproof and dustproof, which using glues and silica gel ‘s seal ring in radio’s speaker, knobs, PTT Key, chassis, microphone jack and screw hold, etc.


Higher Spectrum Efficiency, Higher Channel Capacity

Benefiting from the TDMA technology, DM-R88/R89 allow 2 channels based on the same spectrum resource at the same time. This is helpful to relieve the stress of increasing shortage in spectrum resource.


Digital voice makes your communication clearer and stable

With the advanced technology of narrowband voice coder and decoder and digital correction technology, either you are in the noisy environment or at the edge of communication coverage,DM-R88/R89 can always offer you a clear and stable voice quality.


Versatile Services

DM-R88/R89 has got rich data services and selectable functions such as Text Message, Scan, Emergency alarm, Man Down (optional), High-speed Data Transmission and Lone Worker, etc.


Dual Modes (Analog + Digital)

DM-R88/R89 can operate in either analog or digital mode. It is compatible with the prevalent analog system, ensuring a smooth analog-to-digital transition.


Longer Battery Duration, Longer Working Time

Compared with analog radio, DM-R88/R89 can enhance more than 40% working time.



DM-R88/R89 have passedDMR IOP test by lab, which means it can compatible with Motorola or HYTERA DMR radios completely. With CE and FCC certification, DM-R88/R89 have been sold to many European and America countries and get a pretty good reputation from our customers and users.


Functions and Features:

* 32 Channels / 2 Zones

* Short Messages

*Keypad Operations

*Alone Work

*Private/Group/All Call

*Talk Around

*Privacy Talk


*Programmable Side Key

*Squelch Tail Elimination


*Priority Scan

*Kinds of Alert Tone

*Voice Announcement


*Dual Mode: Digital/Analog

*Vocoder Type: AMBE+2TM

*IP67 Waterproof

*2000mAh Li-Poly Battery

*Repeater Mode

*Radio Enable/Disable

*Recording (Optional

*Direct Mode (True 2-slot)




Frequency Range

136-174MHz / 400-470MHz/450-520MHz

Channel Capacity

DM-R89 : 1000

DR-R88:  32

Zone Capacity (16 channels per zone)

DM-R89 : 256

DR-R88: 2

Channel Spacing

12.5KHz / 25KHz

Working Voltage

7.4V Rated

Frequency Stability

±1.5 ppm

Antenna Impedance


Dimension (H*W*D)

137 x 61 x 40mm


About 260g (with battery, antenna, belt clip)


Output Power


FM Modulation

11KΦF3E @ 12.5 kHz;

16KΦF3E @ 25 kHz

4FSK Digital Modulation

12.5kHz (Data only): 7K6φFXD

12.5kHz (Data & Voice): 7K6φFXD

TX Spurious Emission

-36dBm@<1GHz; -30dBm@1GHz

Modulation Limiting

±2.5kHz @ 12.5 kHz; ±5.0kHz @ 25 kHz

FM Hum & Noise

40dB @ 12.5 kHz; 45dB @ 25 kHz

Adjacent Channel Power

60dB @ 12.5 kHz; 70dB @ 25 kHz

Audio Response


Audio Distortion


Digital Protocol

ETSI TS 102 361-1, -2, -3

Digital Vocoder Type



Sensitivity (Analog)

0.2μV (12dB SINAD) / 0.3μV (20dB SINAD)

Sensitivity (Digital)

0.3μV /BER 5%


TIA-603: 60dB @ 12.5kHz ; 70dB @ 25kHz

ETSI: 60dB @ 12.5kHz ; 70dB @ 25kHz



TIA-603: 70dB @ 12.5KHz / 25 KHz z
ETSI: 65dB @ 12.5KHz / 25 KHz

Spurious Response Rejection

TIA-603: 70dB @ 12.5KHz/25 KHz
ETSI: 70dB @ 12.5KHz/25 KHz


TIA-603: 80dB; ETSI: 84dB

RX Spurious Emission


Audio Power Output


Audio Response


Audio Distortion


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