... 2.4 GHz unlicensed IS General DescriptionThe VT-CC2520-Z1 Wireless Module use TI's second generation ZigBee® / IEEE 802 ... RF transceiver for the 2.4 GHZ unlicensed ISM band l Programmable output power up to +5 dBm,Excellent ... Provides extensive hardware support for frame handling, data buffering, burst transmissions, data encryption, data authentication, clear channel assessment, link quality indication ...