Dongguan TA-RF Security Electronic Technolog Co., Ltd

12 years experience in manufacturing high quality wireless doorphone

and  full duplex walkie talkie, also offer wirless technology solutions 


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HomeProductsHandheld Two Way Radios

Waterproof Headset Handheld Two Way Radios / Wireless Walkie Talkie For Group

Good Quality Wireless Video Doorphone on sale
Good Quality Colour Video Doorphone on sale
The wireless door phone is greeat ,I like it

—— Alice

It is nice ,it will be more better ,if the wireless range is longer


hellohow much is this product, 1 unit only? and how much is the shipping fee to the philippines?

—— mary jane kimura

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Waterproof Headset Handheld Two Way Radios / Wireless Walkie Talkie For Group

Large Image :  Waterproof Headset Handheld Two Way Radios / Wireless Walkie Talkie For Group

Product Details:

Place of Origin:Dongguan, china
Brand Name:TA
Model Number:TA-521-RF

Payment & Shipping Terms:

Minimum Order Quantity:30pcs
Price:Depends on product and order quantity
Packaging Details:Color box or Luxury sport package
Delivery Time:3-5 days by DHL, UPS, Fedex
Payment Terms:T/T, Western Union, Paypal
Supply Ability:200pcs/day
Detailed Product Description


1.Brand Name: TA

2.Model Number: TA-521

3.Type: headset

4.Dimensions: L*W*H=28cm*6cm*4cm

5.Frequency Range: 2402~2483MHz

6.Storage Channel: 83channels

7.Talk Range: 500m

8.current: 150mA

9.operating power: DC 3.7V

10.working temp: -40~+70degrees

Waterproof Headset Handheld Two Way Radios / Walkie Talkie For Group



Technical Parameters


 Master phone

Extension phone

Standby electric current



Operation electric current



Operating voltage



Transmitting power

19 dBm

19 dBm

Receiving sensitivity



Operation time

10 hours

14 hours

Operation temprature



Operation distance

1,              Master phone to extension phone is 300m in opend land

2,              Extension phone to extension phone is 700m in open land


Micro wireless group radio technical specification


1. A single master and one (or more) extension consists of a set, simple operation. In line with the provisions of the Ministry of information industry.

2. Uses the 2.4GHz public band: 2402~2483.5Mhz.

3. Use adaptive frequency hopping, AHF, With the channel change mechanism

4. Transmit Power: 19dBm, receiver sensitivity-105dBm

5. Sky wireless transfer rate: 2Mbps

6. High AD sampling, 8bit accuracy, 8K sampling rate

7. Frequency range: 300Hz~3.0KHz

8. Micro wireless group radio. A number of group-host, you can cover all group information to other groups from the machine.

9. The main chip high-speed ARM core, for the majority of voice synthesis operations.

10. Communication distance: Open extension 700 meters around the host effectively.

11. Earphone: ¢ 2.5 connector ear plugs, ear hook headset.

12. Extension phone: DC 3.7V 2000mAH li-ion battery

      Master phone: DC 7.2V 1500mAH li-ion battery




Full-duplex communication.
Support 4 person talking in a system at the same time.
300m communication distance in open land
Convenient to carry with leather sheath
No need to Press To Talk(PTT)


Applicable Scope:

-Widely Use: Film, Security, Sport, Hospitality, Construction

1) Electric power construction job site overhaul
2) Electricity System and equipment maintenance
3) Mining ,Construction sites contact
4) Army patrols communications
5) Railway Construction Contact
6) Oil Field Construction Contact
7) Golf Course intercom
8) Airport personal deployment command
9) Traffic Police on duty communication
10) Police patrol communication
11) Travel, sports, referee use


Contact Details
TA-RF Security Electronic Technology Co.,Ltd

Contact Person: Mr. Andy Yam



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