| Detailed Specifications |
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- 2.4GHz digital RF technology
- LCD display: 128*64 dot matrix
- support 120 character input
- speed: 400 keypads/4.5s, angle: 360 degrees
- Dimensions of handset: 52.8 mm * 14.5mm *116mm
- Power: two AAA batteries (Alkaline batteries are recommended for longer battery life)
- Battery life: 1 years with ordinary usage
- Built-in battery status check to electrical quantity check and display
- 64 sets of systems can works well at the same classroom at the same time
- Up to 2000 handsets can be used at the same time with one receiver
- Weight: 42g (without batteries, 2 batteries weight: 0.017)
- Buttons number: 20 keys. Buttons includes A-Z, a-z, 0-9, punctuation keys, Rush button, OK, Clear, up/down, on/off, and FN function key.
- Support input numbers uppercase and lowercase letters.
- Support up to 400 audience keypads' transmission < 3 second
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- LED status
- 4 radios channels
- Laser indicator build-in
- Power required: two 1.5 volt batteries
- Transmission angle: 360 degree
- Battery life: > 1 year for ordinary use
- Durable and not easily breakable, will not break or damage even drop to the cement ground from 5 meters high
- Easy to use
- Maintain full control over every presentation
- Present slides, going backwards, forwards, showing charts etc.
- Select a user at random to answer a question
- Control games procession.
- Over 1 year battery life for normal use.
- It will enter Power Saving Mode within 5 seconds when is left idle
- It's clipper-built, small and exquisite, very suitable for handhold
- Size: (mm) 104*15 *49
- Buttons number: 13
- Weight: 45g
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- Works with XP, Vista, Win7,Win8, Linux, Mac and Android , Compatible with PPT 2000, XP, 2003, 2007, 2010, 2013
- Complete text input functions. Keypad handles alphabet, standard punctuation, numbers and symbols. Familiar mobile phone keypad layout
- Integrated with PowerPoint. Uses standard PowerPoint commands and icons to build questions and operate PowerPoint slides.
- Provides 11 Activity modules to handle a wide range of classroom activities
- Supports self-paced-response so the student handsets can be used to administer paper-based tests and check in homework.
- Supports multi-correct answer options (e.g. “The correct answer is A and C” in a multiple choice question.)
- Address programmable handsets make it easy to assign any handset to any student and save classroom time.
- Instant messaging function allows interactive messaging between teacher and students
- Question, polling and voting options
- The RF220software provides great flexibility and options in asking different types of questions and answers. The options are:
* Text question mode
* For/Against/Abstain voting mode
* True/False question mode
* Yes/No question mode
* Multiple choice question mode
* Sort – in – order question mode
* Digital question mode (special and convenient fraction input)
* Questions with certain numberof options
* Category question mode
- Special ItsMe audience-checking program displays pictures of the each student to help teachers remember student names, and reduces the risk of cheating in large classrooms.
- Support web version (it’s can check and analyze answer report)
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- 2.4GHz digital RF technology, automatically radios channels tranfer
- 64 kits can work at the same time in the same room (each kit with 400 users)
- Color: REC-220A: black, opaque REC-220C: white, opaque
- Port: REC-220A: USB port or 232 port; REC-220C: USB port
- Weight:REC-220A: 0.17kg REC-220C: 0.027kg
- Size: L*W*H
- REC-220A: 137*137*50mm
- REC-220B: 100*60*27mm
- REC-220C: 104*26*18mm
- Standard USB cable length (work with REC-220A): 5m, can extensive to 30 meters without add extra power supply, and 200 meters with extra power supply.
- Operating Temperature: 0-40 degree
- Power required: DC12V, 800MA adapter or no extra power required
- Operating Relative Humidity: 0-90%
- Operating Power: <1mw
- Receiving angle: 360 degree
- High processing speed - 700 audience keypads' transmission <0.8 seconds
- Support up to 2000 student keypads
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