SureCall Five-Band RF Signal Meter for 4G LTE, Cellular, PCS and AWS Cell Phone Signal Booster Installation (SC-METER-01) FIVE BANDS: 1930-1995 PCS, 869-894 Cellular, 2110-2155 AWS, 746-757 LTE, and 728-746 LTE LONG WORKING TIME: 2.5 - 3.5 hours RECHARGEABLE DESIGN: Four AAA NiMH batteries CONTROLLABLE BACKLIGHT: For dark environments HIGH RECEIVING SENSITIVITY: -110dBm