Model Number: th-289. Brand Name: TESUNHO Key Specifications/Special Features: Quick detailsPlace of origin: Fujian, China (Mainland)Brand name: TESUNHOModel number: TH-289Type: Handheld

Dimensions: 100*58*32mm

Frequency range: HSDPA/WCDMA: 2100/1900/850(900)MHz

Storage channel: 56

Talk range: Unlimited(Global)

UMTS band: HSDPA/WCDMA: 2100/1900/850(900)MHz

SIM card: GSM

Advantages: GPS satellite Plsi, flashlight, TOT

Feature: selective calls, group calls and all calls

(U)SIM/SIMU: Standard SIM card, interface 3V SIM card, and 1.8V SIM card

Max power consumption: About 2.2W

Input intelligent charger: 12V/24V

Operating voltage: DC3.3V-4.2V(3.8V is recommended)

Operating temperature: -30*C to +75*C

Weight: about 194g

Packaging & delivery
Packaging details: Standard package
Delivery detail: Shipped in 2 days after payment

How it works:
First,GSM 2G3G WCDMA radioworks with GSM850/1900/UTMS2100MHz or GSM900/1800/UTMS2100MHz (depend on your country). You need to buy a SIM card to insert into the radio and it can talk, cover the whole world.
Second, GSM 3G walkie talkiecost data flow, normally it is 2.88M per hour for unstopping communication, and it is 0.06M on the standby mode per day.
TH-289 can be made withGPSfunction.
Third, there will be amanagement websitefor you to assign users' account and set talking rights or function. It helps institution with many people to save time and cost on communication.

Main functions
GPS function (options)
Battery capacity indicator
Ultra high capacity Li-ion battery: 4600mAh
Network signal strength prompt
Programmable function key
Voice prompt
Bright flashlight illumination
TOT function
Private calls, group calls
User authority setting
Transmitting ending prompt