Recently we have the TT122 on market. The product is 2.4G with long range 150 meters in the open area. it is very cost-effetive. If you need it, feel free to email us at support@retekess.com
2.4GHz technology is widely used in the wireless communication applications in the whole world. No matter where you are, you can use the wireless tour guide system. Because it is free band.
Retekess TT109 tour guide system is the best one-way Tour Guide System for Hajj. It is free to use in the world. You can hang on your neck and free your hands.