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Features

According to reports, the cool techs full of smart bracelet has neither screen nor button, users can control it through sound and gestures. It can be used to record heartbeat and calorie consumption, can make phone calls, send text messages, and even have payment function. It is made of high-tech fiber and has the function of seamless and waterproof.

Price

The inventor said the bracelet intelligently transmits sound through vibration, so people nearby cannot hear the conversation, and the vibration travels from the wrist to the fingers, so no speakers are needed to hear the sound. In terms of price, the smart bracelet costs about $250.

Whale hearing is also achieved in this way. The famous composer Beethoven discovered the method of bone conduction to listen to sound when he was almost completely deaf. He connected a stick to the piano and bit it with his teeth. When the vibration was transmitted from the piano to the lower jaw and through other bones to the inner ear, Beethoven gained a sense of sound.

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