- 22 -SpecificationsPower• Voltage range/frequency: 100~240V AC, 50/60 Hz• DC output: 5V/1ABattery• Built-in, rechargeable, non-replaceable, Lithium-Ion polymerConnectivity• Bluetooth 4.0 LE• Wireless LAN 802.11 b/g/n 2.4GHz• This radio equipment operates with the following frequency bands and maximum radio-frequency power:• Bluetooth: <20dBm• 802.11bgn: <20dBmSensor• Particulate Matter• TVOC• Temperature• Relative Humidity• Ambient LightOperating Temperature• 5°C~40°C