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.
Retekess TD159 Wireless pager system has a screen with 10 pagers It supports 1999 pagers in all. So you can add more if you need. The default frequency is 433.92MHz The keyboard can directly enter numbers and English letters, send a text to the menu and support multi-window calls. You can set 10 default text messages, and choose to send default messages directly through the number key 0-9. Custom reminder mode: any combination of flashing lights / buzzing/vibrating
Retekess TD159 is a wireless calling system for truck drivers, food plaza etc. areas. Pager has the screen, you can send message to the pager. It is perfect for warehouse and other place have multiple window business. Long rang up to 1000-1500 meters. If you want to know more, feel free to email us at support@retekess.com. Visit us www.retekess.com
You could use the TD021 signal amplifier to increase the range of Retekess service calling system and guest paging system. And the detail settings of the repeater