Product Specification: ISM 2.4 GHz operating frequency 60 mW (+18 dBm) power output (up to 750m) Industrial temperature rating (-40° C to 85° C) Indoor/Urban range: up to 300 ft (100 m) Outdoor/RF line-of-sight range: 750meters Interface data rate: Up to 115.2 Kbps Operating frequency: 2.4 GHz Supply voltage: 2.8 - 3.4 V Transmit current: 270 mA (@ 3.3 V) Receive current: 55 mA (@ 3.3 V) Power-down sleep current: