The Enjoy FullTextsm RF219 has the familiar mobile phone keypad layout for texting answers. This powerful new feature lets students answer more complex written questions just as if they were sending a text message. Teachers can use the RF219 for short essay style questions as well as the traditional A-F, True/False and numeric answers.
Features:
The ENJOY RF219 ARS is a complete radio frequency based system that includes: software, receiver, instructor remote control with laser pointer, student handsets, the cable to connect the receiver to a PC USB port, protective carrying case, and operating instructions.

1. Dimensions of LCD : 32mm * 21mm
2. 2.4GHz digital RF technology
3. 128*64 dot matrix LCD display
4. 120 character input
5. Transmission distance: > 100 meters
6. Transmission angle: 360 degrees
7. Dimensions of handset: 52.8 mm * 14.5mm *116mm
8. Power: two AAA 1.5 volt batteries (Alkaline batteries are recommended for longer battery life)
9. Battery life: 1 to 2 years with ordinary usage
10. Built-in battery status check to electrical quantity check and display
11. 64 sets of systems can works well at the same classroom at the same time
12. Up to 2000 handsets can be used at the same time with one receiver
13. Weight:Receiver:0.175kg;Instructor remote: 0.045 kg; Students remote: 0.045 kg