1. Wide verizon LCD

2. Protection to over voltage, over current, overloading and thunderstrike

3. Screen flip function
4. Shortcut to switch group/user and talking history
5. Loud audio and audio control lock function
6. Multimedia Speaker
7. Wide range of input voltage options: 12-28V
8. Can be a 5V 1A quick charger for mobile phone
9. exteral speaker is available with Tesunho's standard
10. 8-pin secondary development jack available 
11. Maximum bracket rotate degree: 270 degree

TH-518 is a robust handheld PoC two way radio with standard American English prompt. Wifi function allows you enjoy the free calls. 

1. SOS (Alarm button)

2. GPS Function

3. Support 3G/2G WIFI

4. Large Capacity (3.63V 5200mAh)

5. Support Group Call, P2P Call, Quick Call, Emergency Call

TH-682 is a powerful 2way radio, popular in professional applications. Real-time positioning to realize timely reinforcement/rescue for any emergency situations. 

1.NFC (optional)

2.Bluetooth (optional)

3.SOS & APRS (emergency button)

4.Supports 2G/3G/4G network

5.Can receive Dispatcher message 

6.Supports Group call, Single call, Selective call, Emergency call, Quick Call

7.Display the Users/Calling/Last caller information

8.Quick charger-3 hours fully charged