the ultra mini RF 2.4 Ghz wireless audience response keypad

• Slim case with soft touch elastomeric keyboard and LED indicators.
• Smaller than a credit card and weighs less than an ounce. Fits easily in the palm and may be comfortably worn with an optional lanyard.
• Two-way spread spectrum radio employing an advanced communications protocol.
• Frequency hopping delivers high immunity to interference plus signal security to allow the system to operate in the presence of other wireless devices.
• Works with Reply® (Worldwide) Model CRS940 base stations.
• Allows drop-in use with scores of Reply®-compliant software applications.
• Ultra light weight: Weight: Less than 1 oz. (with battery installed). Foot print smaller than a credit card.
• Is compatible with Reply worldwide keypad. (same RF protocol, same firmware, and is exchangeable)
• Can interface with Reply Worldwide Base station CRS940 or Reply Solo base station WRS960X.
• Can be combined use with Reply worldwide keypad using PowerCom for Reply Worldwide software.
• Ideal keypad for participant to attend multi-event conference.

The mini's functions are exactly the same as Reply worldwide (except only 5 choices).
Here is more detailed information about the product.

Reply Mini CRS5000 keypad list price is $39.95 per keypad.

User Identification

• Each keypad has an RF device identity (“address”) between 1-250 and a channel identity between either 1-15 (standard version; stocked item) or 1-72 (custom arena version; special order; special terms and pricing apply).
• Addresses may be changed by using an optional WRS960X-T portable programmer model.
• Each keypad also has a unique device serial number.
• Serial numbers are permanent and set during manufacturing.
• Both the address and serial number are transmitted with each keypad’s response.

User Input

• 5 elastomeric buttons for entering multiple choice responses. Buttons are labeled 1-5, A-E.
• Entries can be “speed scored” to 0.01 second (100 millisecond) resolution to identify group response sequence (PowerCom 'fastest finger' function) during competitive events.

Display

• Green and Red LEDs confirm user key presses and indicate when the Base Station accepts the keypad's inputs.

RF Technology

• Two-way RF keypad uses eligible license-free/license exempt frequencies to communicate key presses to the Base Station and receive from the Base Station control information and acknowledgments of successful entries.
• Employs Fleetwood-engineered 2.4 GHz frequency hopping spread spectrum (FHSS) transceivers.
• FHSS offers excellent range, immunity to interference, and signal security.
• Patented and proprietary radio protocol.
• Creates a secure communications network between keypads and their associated Base Station.
• User entries are acknowledged when received by the Base Station. This message acknowledgment method is just one of the many patented features of Reply® systems.
• Permits Reply® systems to operate in the presence of other RF devices (WLANs, PDAs, phones, etc.).
• Integrated error checking discriminates system signals from all other RF traffic to ensure data accuracy and enhance security.

• Depending on version, 15-72 channel identities are available to provide installation flexibility and support up to 3,750-18,000 keypads per room.
• Internal antenna is protected by the keypad enclosure.

Range

• Reply® Mini is designed to operate in an indoor area 300 x 300 feet.
• Elevating the base station often results in a performance advantage.

Capacity

• 250 keypads per Base Station channel identity.
• Stock configuration: Default. 15 identities available for 3,750 keypads per room/site.
• Arena configuration: Non-stock, special terms and pricing apply. Up to 72 identities for 18,000 users per venue.

Speed

• Determined by Base Station. See Reply Worldwide Base Station Model CRS940 specification.
• Time stamping is available to identify each keypad's input sequence in group's response.