RFM69HCW Wireless Transceiver - 434MHz (4-pack)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Transmit power: -18dBm (0.016mW) to +20dBm (100mW) in 1dBm steps</li><li>Receive sensitivity: down to -120dBm at 1.2kbps</li><li>Bit rates (FSK): 1.2kbps to 300kbps</li><li>Voltage range: 1.8V to 3.6V - Current consumption: 0.1uA sleep， 1.25mA standby， 16mA receive， 130mA transmit (max)</li><li>Encryption: AES 128-bit (optional) - Packet buffer (FIFO): 66 bytes</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51KVyew8nvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61v10pcc1CL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61qyR1VE74L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/516TmrZFv-L.jpg" noproxy>