49
Appendix
RF frequency band
1921.536MHz - 1928.448MHz
Channels
5
Charger voltage
(Adapter output)
6VDC @400mA
Headset voltage
3.2VDC - 4.2VDC
Replacement battery
3.7V 240mAH
Technical specifications
DECT 6.0 digital technology
Digital Enhanced Cordless Telecommunications (DECT) 6.0 is a new frequency
band that transmits your voice across multiple channels. This technology provides
superior quality of voice and sound, high protection against wiretapping and
better range than 2.4 GHz and 5.8 GHz phone systems, while not interfering with
wireless routers.
Operating range
This cordless headset operates within the maximum power allowed by the Federal
Communications Commission (FCC). Even so, this headset and headset base can
communicate over a certain distance — which can vary with the locations of the
headset base and headset, the weather, and the construction of your home or office.
Extended range and clarity
Experience the best in long-range coverage and clarity, provided by a unique
antenna design and advances in noise-filtering technology. The TL7900 is a fully
cordless DECT 6.0 headset offering a range of up to 500 feet. Open range test was
performed by Wyle Laboratories, an independent commercial test facility. “Up to
500 feet” cordless headset range refers to the maximum open field range. Actual
range may vary depending on intervening obstacles.
Sound level protection technology conforms to the current regulations and is used to
filter out the loud and high-pitched noises.
Appendix