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Mahjong tile phone charm. Phone charms (also phone danglers, phone lanyards, phone chains and phone straps) are charms that are connected to a mobile device either via a phone connector or silicone plug that fits into the jack port sometimes provided with circle cotters and a lobster clasp, or a small strap knotted with a cow hitch knot, or a lanyard.
Professional wireless microphones used the 700 MHz band until 2010 when they were made illegal, but equipment still exists in use that may interfere with 3G and 4G technologies. [ 10 ] Due to immediate adjacency to channel 51 lower 700 MHz A block license holders were prohibited to use it within channel 51 station service areas.
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Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use the same handset. This portability is not as extensive with IS-95 phones, however, as IS ...
Oprah included a useful — and cute — cell phone purse that sticks close to your body in her 2022 Favorite Things List. (Photo: Getty Images) (GEOFF ROBINS via Getty Images)
In telecommunications, a multi-band device (including (2) dual-band, (3) tri-band, (4) quad-band and (5) penta-band devices) is a communication device (especially a mobile phone) that supports multiple radio frequency bands. All devices which have more than one channel use multiple frequencies; a band however is a group of frequencies ...