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The 3G4G Blog: Different flavours of Bluetooth: 4.0, 4.1, Low Energy, Smart, Smart Ready...
![Amazon.com: EarFun Free 1S Wireless Earbuds, [2023 Version] 4 Mics ENC Bluetooth 5.0 Earbuds, 7mm Composite Drivers, App for Custom EQ, Sweatshield™ IPX7 Waterproof Headphones, Wireless Charging, Game Mode, 30H : Electronics](https://m.media-amazon.com/images/I/61UZ1fjxyDL.jpg "Amazon.com: EarFun Free 1S Wireless Earbuds, [2023 Version] 4 Mics ENC Bluetooth 5.0 Earbuds, 7mm Composite Drivers, App for Custom EQ, Sweatshield™ IPX7 Waterproof Headphones, Wireless Charging, Game Mode, 30H : Electronics")
Amazon.com: EarFun Free 1S Wireless Earbuds, [2023 Version] 4 Mics ENC Bluetooth 5.0 Earbuds, 7mm Composite Drivers, App for Custom EQ, Sweatshield™ IPX7 Waterproof Headphones, Wireless Charging, Game Mode, 30H : Electronics
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