Bluetooth device is used generally in a chip solution or multiple chips. This is due to the fact that a Bluetooth device or module consists of three main parts: the RF part, the base band processor and the link manager. Some vendors will produce BT module in multiple chip. Signals can be transmitted through walls and briefcases. So it is eliminating the necessity for line-of-sight. Eight devices can be networked in a piconet. It separates the frequency band into many hops. This spread spectrum is used to hop from one channel to another, which adds a strong layer of security. Both synchronous and asynchronous applications are supported, making it easy to implement on a variety of devices and for a variety of services, such as voice and Internet. It is possible to utilize the same standard wherever one travels. Devices are not needed to point at each other, as signals are Omni-directional. Dimensions of a Bluetooth device can be a bit more difficult to establish.
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