Eartec ULDM HD UltraLITE Double Master Headset

The Eartec ULDM HD Ultra Lightweight Double Master Wireless Headset offers users the ability to stay in constant full - duplex voice contact, even when on the move. Unlike most other wireless headsets, it doesn't need belt - pack transceivers. All electronics, including the battery, are neatly housed inside the ear cups. This headset comes with deluxe padding and a fully adjustable noise - cancelling microphone, ensuring clear voice communication in high - noise environments. Key features include: It's the HD version and not compatible with classic versions bought before May 2018. Its self - contained 'all - in - one' design gets rid of wires and belt - worn radios. You can wear it on either the left or right ear as the mic boom swivels 270 degrees. It uses DECT technology (Digital Enhanced Cordless Telecommunications), and its lithium - polymer batteries provide 6 hours of continuous operation. No FCC licensing is required, so it's ready to use right out of the box. Technical specs: Standard is DECT 6.0, frequency is 1920 - 1930MHz in the USA and 1880 - 1900MHz in Europe. It weighs 4 oz, has a channel bandwidth of 1.728 GHz, and uses GFSK modulation. Transmission speed is 1.152 Mbps. It uses Time Division Duplex and ADPCM speech encoding. RF accessing is Time Division Multiple Access, with a range of 400m in open space. The headset is powered by a rechargeable 3.7V/800mAh 3.0Wh lithium battery, and the charger has an input of 110 - 240Vac and an output of 5.0V - 1 1000mA. Charge time is 3 hours, operation time is 6 hours. Normal use is between 0°C to 10°C, and storage temperature is from - 10°C to 60°C.

Using the Eartec ULDM HD headset is easy. First, charge the headset for about 3 hours using the provided charger. Once fully charged, you can wear it on either your left or right ear and adjust the mic boom to your preferred position. Then you're ready to start communicating. When using it, make sure you're within the 400 - meter range in open space for the best connection. Also, note that this is the HD version and won't work with classic versions bought before May 2018. For maintenance, keep the headset clean by gently wiping it with a soft, dry cloth. Store it in a cool, dry place, with temperatures between - 10°C and 60°C. Don't expose it to extreme heat or cold. And always turn it off when not in use to save battery life.