TH-289 is a basic two way radio with rugged shell, no need detail training, suitable for beginners.
1. SOS (Panic button )
2. GPS (Optional)
3. Support 3G/2G network
4. Support Group Call, Single Call, Selective Call, Emergency Call
5. Non-screen – Rugged design ...
Radio was used to pass on orders and communications between armies and navies on both sides in World War I; Germany used radio communications for diplomatic messages once it discovered that its submarine cables had been tapped by the British. The United States passed on President Woodrow Wilson's Fourteen Points to Germany via radio during the war. Broadcasting began from San Jose, California in 1909, and became feasible in the 1920s, with the widespread introduction of radio receivers, particularly in Europe and the United States. Besides broadcasting, point-to-point broadcasting, including telephone messages and relays of radio programs, became widespread in the 1920s and 1930s. Another use of radio in the pre-war years was the development of detection and locating of aircraft and ships by the use of radar
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