Standard: DECT 6.0 (Digital Enhanced Cordless Telecommunications)
Frequency: 1880–1900MHz (UK/EU)
Channel Bandwidth: 1.728 MHz
Modulation Type: GFSK
Transmission Speed: 1.152 Mbps (Baud Rate)
Duplexing: Time Division Duplex (TDD)
Speech Encoding: ADPCM I 32bit/s
RF Accessing: Time Division Multiple Access (TDMA)
Range: Up to 400m (Line of Sight)
Power Supply: Rechargeable Lithium Battery (3.7 V, 800 mAh, 3.0 Wh)
Full Charge Time: Up to 3 hours
Operation Time: Up to 6 hours
Storage Temperature: -10 C to 60 C
Warranty: 12 Months
Specification
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Eartec UltraLITE HD Headset Comms

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Description
UltraLITE HD headsets eclipse all other full duplex wireless for performance and convenience because the transceiver is built right inside the ear cup. This self-contained ‘All-in-One’ design eliminates headset wires and even belt worn radios. They provide simultaneous talk, two-way voice communication for users that need to work with their hands yet also require one ear free to listen to what is going on around them.
2 - 8 Way Wireless System