Clear Com FreeSpeak 1.9 GHz  FSII Digital Wireless beltpack, 4 pin male headset connector. (1.9GHz)  ( also available in 5pinXLR) 

Digital wireless beltpack including four talk and listen buttons with integral crosspoint level rotary controls and answerback and menu key. LED level and call signalization and OLED menu. 

The five-channel, full-duplex FreeSpeak II digital beltpack was uniquely designed for the rigorous demands of large-scale operations and continuous communication use. Ergonomic form factor, intuitive operation, and a rugged housing make the beltpack ideal for extended use. This beltpack operates in the 1.88 - 1.93GHz frequency band.

Key Features:

• Up to five communication routes per beltpack, each with a 5 or 10 character label
• Four programmable pushbuttons, two rotary encoders and a reply button
• Menu driven display, which can be partially or completely restricted
• Secure system – beltpacks are registered to a particular base station or Matrix
• Internal antenna – no antenna breakage or damage
• Long battery usage – typically 18 hours of continuous talk time
• Two battery options – rechargeable Li-Ion cells or disposable Alkaline AA Batteries
• Drop-in charging port with built-in USB battery and beltpack charging capability
• Strong metallic beltclip and shoulder strap points
• Over-the-air beltpack easy registration and regionalization
• Real-time monitoring of battery per beltpack
• “Listen Again” audio memory to replay last 15 seconds of audio
• Technician’s flash light on bottom