Bluetooth Earphone
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TOZO A1 Mini Wireless Earbuds Bluetooth 5.3 in Ear Light-Weight Headphones Built-in Microphone, IPX5 Waterproof, Immersive Premium Sound Long Distance Connection Headset with Charging Case, Black.
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TOZO T6 True Wireless Earbuds Bluetooth 5.3 Headphones Touch Control with Wireless Charging Case IPX8 Waterproof Stereo Earphones in-Ear Built-in Mic Headset Premium Deep Bass Black.
To use Bluetooth wireless technology, a device must be able to interpret certain Bluetooth profiles, which are definitions of possible applications and specify general behaviours that Bluetooth-enabled devices use to communicate with other Bluetooth devices.
These profiles include settings to parametrize and to control the communication from start. Adherence to profiles saves the time for transmitting the parameters anew before the bi-directional link becomes effective. There are a wide range of Bluetooth profiles that describe many different types of applications or use cases for devices.
The development of the short link radio technology, later named Bluetooth, was initiated by Nils Rydbeck CTO at Ericsson Mobile in Lund. The purpose was to create a wireless headset, according to two inventions, presented in 1989,SE8902098, issued 1989-06-12 and 1992 SE9202239 issued 1992-07-24 by Dr. Johan Ullman. Nils Rydbeck tasked Tord Wingren with specifying and Jaap Haartsen and Sven Mattisson with developing, who were working for Ericsson in Lund, Sweden. The specification is based onfrequency-hopping spread spectrum technology.
Bluetooth Headphones Wireless Earbuds 80hrs Playtime Wireless Charging Case Digital Display Sports Ear buds with Earhook Premium Deep Bass IPX7 Waterproof Over-Ear Earphones for TV Phone Laptop Black (6 Variations Available).
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Wireless Earbuds V5.3 Bluetooth Headphones 90 Hrs Playtime Earbuds with Wireless Charging Case Power Display Over-ear Earphones with Earhooks Waterproof Stereo Headset for Android phone Workout Purple.
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