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Anker Soundcore 2 Portable Bluetooth Speaker with 12W Stereo Sound, Bluetooth 5, Bassup, IPX7 Waterproof, 24-Hour Playtime, Wireless Stereo Pairing, Speaker for Home, Outdoors, Travel (AMAZON)
Ultimate Ears WONDERBOOM 3, Small Portable Wireless Bluetooth Speaker, Big Bass 360-Degree Sound for Outdoors, Waterproof, Dustproof IP67, Floatable, 131 ft Range - Active Black (AMAZON)
Our editors have listened and found the best bluetooth hearing aids for a number of different use cases. ... They have an IP68 rating for water and dust resistance. Via the Sony hearing app, you ...
Some of these technologies include standards such as ANT UWB, Bluetooth, Zigbee, and Wireless USB . Wireless Sensor Networks (WSN / WSAN) are, generically, networks of low-power, low-cost devices that interconnect wirelessly to collect, exchange, and sometimes act-on data collected from their physical environments - "sensor networks".
The Bluetooth protocol RFCOMM is a simple set of transport protocols, made on top of the L2CAP protocol, providing emulated RS-232 serial ports (up to sixty simultaneous connections to a Bluetooth device at a time). The protocol is based on the ETSI standard TS 07.10. RFCOMM is sometimes called serial port emulation.
The first Bluetooth device was revealed in 1999. It was a hands-free mobile headset that earned the "Best of show Technology Award" at COMDEX. The first Bluetooth mobile phone was the unreleased prototype Ericsson T36, though it was the revised Ericsson model T39 that actually made it to store shelves in June 2001.
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