The CrewCom 2.4GHz, one-volume, two-channel (A or B) Radio Pack is an innovative digital wireless beltpack used for connecting mobile users to the CrewCom CB2 system. Along with standard full-duplex communications, the radio pack allows users to Independently listen and talk on two conferences. The pack also features intuitive controls, a compact lightweight design, advanced RF technology, and a backlit LED channel indication. (Note: This Radio Pack is ONLY compatible with the CB2-2400 BaseStation, is NOT compatible with any CrewCom CCU-44 or CCU-22 CU.What’s Included: Radio Pack Lithium-Polymer Rechargeable Battery Battery Charger / Power Supply USB A to Micro B cable Quick Start GuideMain Features: Compact size Light weight (13 oz./ 369 g) 7 kHz audio for excellent voice quality Familiar volume/talk user interface Preprogrammed Function Buttons (x2) USB connection for pairing, firmware updates and battery charging Dual battery (Li-Poly or AA) operation Greater than 9 hours continuous operation (Li-Poly) Easy-to-use spring-loaded belt clipSpecifications: RF Frequency (MHz): 24002483 MHz RF Scheme: FHSS with TDMA Effective Radiated Power: 100 mW (+20 dBm) Receiver Sensitivity: -100 dBm at 10-5 BER Radio Certification: FCCID: HSW-CCT24 and IC: 4492A-CCT24 Transmission Range: 150 m (approx. 500 ft.) under typical conditions; 450 m (approx. 1500 ft.) line of sight (Note: Functional range depends on many variables, including RF signal absorption, reflection, and external interference.) Audio Dynamic Range: Greater than 90 dB Audio Frequency Response: 150 Hz7 kHz Channels: 2 Volume Knobs: 1 Talk Buttons: 1 Headset Connector: 4-pin male XLR Microphone Type: Auto Detect; Dynamic or Electret Antenna: (2) 2dBi Dipole Battery Life, Rechargeable Lithium-Polymer: Greater than 10 hours Charging Power Supply: Micro USB; 6W AC wall adapter Charge Time for Lithium-Polymer Battery (with supplied PSU): Under 3 hours Optional Power: 3 Standard AA alkaline batteries Battery Life, AA Batteries: Approximately 5 hours Dimensions (L x W x H): 11.43 cm 11.61 cm 5.87 cm (4.50 in. 4.57 in. 2.31 in.) Weight (with Lithium-Polymer battery): 350 g (12.3 oz.) Material: Polycarbonate substrate with thermoplastic elastomer overmold Operating Environment: -20 to 50 C (-4 to 122 F); 10% to 90% Humidity. RP Power Supply is 0 to 40 C (32 to 104 F). Maximum Altitude: 2,000 m (6,562 ft.) RoHS Compliant: Yes IP Rating: IP-65 Compliance Model Number: RP2500