Sela-SG uses long range, low power radio frequencies occupying the ISM bands in the wireless spectrum below 1 GHz, this avoids the much more crowded band at 2.4 GHz, where Wi-Fi, Bluetooth, ZigBee and other wireless protocols operate.

Enclosure ABS, Waterproof, Dustproof, IP67 (Ingress Protection)
Temperature -20 ℃ to 40 ℃ (-4 ℉ - 104 ℉)
Range 1000 Meters (3280 Feet) Bluetooth only works within 100 Feet of your phone
Display Diffused Front Panel, Red, Green, Blue, Yellow, LEDs
Speaker 1 Watt, 96 dB (Decibels), Polyester, Cone Polyethylene Terephthalate (PET)
LED Brightness 350 mcd (Microcandela)
Frequencies 868 Mhz, 915 Mhz, 50 kbps 2G Frequency-shift keying
North America 915 Mhz, FCC ID 2ANH5-RC-CC1310-915, Part 15C
Europe 868 Mhz, CE Certified, Radio Equipment Directive 2014/53/EU
Diameter 50.8 mm (2 Inches)
Height 15 mm (0.560 Inches)
Weight 32 Grams (1.3 Ounces)
Shape Round
Battery Lithium Polymer (LiPo), 3.7 Volt, 450 mAh
Battery Life Mixed use, 90 days on a single charge
Charge USB Micro-B, Input voltage, 5 Volts, 500 mA (max)
Motion 12 bit 3 Axis Accelerometer
Enclosure ABS, Waterproof, Dustproof, IP67 (Ingress Protection)
Battery Size CR2032
Battery Life 1 Year

Texas Instruments CC1310