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Quick Details

  • Place of Origin: Fujian, China (Mainland)
  • Brand Name: TESUNHO
  • Model Number: TH-388
  • Type: Handheld
  • Dimensions: 120*60*40mm
  • Frequency Range: HSDPA/WCDMA:2100/1900/850(900)MHZ
  • Storage Channel: 200
  • Talk Range: Talk over the world
  • Color: Black
  • Weight: About 194g
  • SIM card: GSM
  • (U)SIM/SIMU: Standard SIM card,interface 3V SIM card,and 1.8V SIM card
  • Advantages: GPS Satellite Plsi,Flashight,TOT
  • Max power consumption:: About 2.2W
  • Operating Voltage: DC3.3V-4.2V(3.8V is recommended)
  • UMTS Band: HSDPA/WCDMA:2100/1900/850(900)MHZ
  • Feature: Selective Calls,Group Calls and All Calls
  • Input intelligent charger: 12V/24V

Packaging & Delivery

Packaging Details Standard Package
Delivery Time Shipped in 7 days after payment
Product Description



3G GPS GSM SIM CARD two way radio Tesunho  TH388 PTT Network Radio


To break through the dilemma, the public network is born at the right moment.  It can realize the effect “talk over the world”.

It also saves management cost and improves the management  efficiency. 



It can be widely used in the following applications: logistics, 

freight, taxi, urban management, medical aid, security system, 

highend property, large construction sites and other industry users.

app opener with sim card new talkie with sim card


 Working Principle


First, GSM 3G radio works with GSM850/1900/900/1800 UTMS2100 MHz 
You need to buy a SIM card to insert into the radio and it can talk, cover the whole world. 

Second, GSM 3G walkie ta lkie cost data flow, normally It is 2.88 Mege Byte per hour for unstopping communication,
 It is 0.06M on the standby mode per day. 
TH-388 can be made with GPS function.
Third, there will be a management website for you to assign users account and set talking rights or function. 
It helps institution with many people to save time and cost on communication. 














 Dimensions  (Without Antenna)

 100mm x 58mm x 32mm

 Weight  (With Battery)

 About 194g
 Operating Temperature -30*0 to +75*C
 Operating Voltage DC 3.3V-4.2V (3.8V is recommended)
 Operating Current
 Peak Current:  About 0.6A

 Average Current:   

 About 540mA@UMTS 2100 About

 239mA@GSM 900

 Standby Current: 

 About 5mA@UMTS About 5mA@GSM




 Standard SIM card interface 3V SIM card and 

1.8V SIMcard

 USB Interface USB 2.0 HIGH SPEED
 UART Interface 8-wires UART
 MAX. Power Consumption About 2.2W



 UMTS Band HSDPA/WCDMA: 2100/1900/850(900)MHz
 Transmit Power

 UMTS2100/1900/900/850: Power Class 3

 (+24dBm +2.5/-1.5dBm)

 EDGE 850MHz/900MHz: Power Class E2 

(+27dBm +4.5/-1.5dBm)

 EDGE 1800MHZ/1900MHz: Power Class E2

 (+26dBm +4.5/-2.5dBm)

 Receiving Sensitivity

 WCDMA2100: ^-108dBm

 WCDMA1900: <-109dBm

 WCDMA900 : ^-109dBm

 WCDMA850:^ -109 dBm

 GSM850/900/1800/1900: «-107dBm




Packaging & Shipping




Packing List 

1 pc two way radio (100% brand new)

1 pc li-ion battery

1 pc antenna

1 pc adapter

1 pc intelligent charger

1 pc clip + 1 pc strap 

1 user manual



MOQ2 for samples; 100 for mass production; 500 for OEM
PackagingGift box, 20pcs/carton
Trade Terms FOB Xiamen/Shenzhen/Hangzhou
Express deliveryDHL/UPS/FEDEX/EMS/TNT
Delivery time3-5 days after receiving the payment
PaymentT/T, West Union, Money Gram, PayPal,Escrow or LC
WarrantyRadio 1 year; Accessories 3 Months




Our Services








Main Unit

 1 Year Warranty

finish maintainance within 1-15days

after receiving the returned units

BatteryHalf Year Warranty

Within Half Year:send you brand new one if it is not manually damaged;

Beyond Half Year:supply cost-effective renovation

ChargerHalf Year Warranty

Within Half Year:send you brand new one if it is not manually damaged;

Beyond Half Year:supply cost-effective renovation




Design Services



Repeater Design and Production
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Analog walkie talkie Design and Production
Internet walkie talkie Design and Production
Digital walkie talkie Design and Production
Switching power supply Design and Production





Company Information




10 years Electronics Design Experience.

Powerful and reliable R&D team.


Instant respond to customer's enquiry.

Control design and productive cost, cost-effective.


Never reveal customers design.

Exclusivity is guaranteed!

To-be-perfectBecause of all the above.
Target Customer

Who has distinctive foresight on the industry.

Who wants to save the high expenses on R&D in order to enhance integrated competition.

Whole sellers who has a large local market and wants its own brand.








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Trade Assurance
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
24 Transactions 10,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $200,000
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