Size: approx. 2.22*1.47*0.57" Interface: RS232 Executive Standard Bluetooth SIG v2.1+EDR Bluetooth Protocol: Bluetooth serial port profile (SPP) Communication speed: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, bps Modulation Type: 2.4G ISM direct sequence frequency hopping (FHSS) Communication Distance: 15M at open space, class 2 level Transmit Power: 4 dbm receiving Sensitivity: -79dbm operating Voltage: 5V Sleep Current Operating Current: 40ma/1.6ma(typical value) Operating Temperature Storage Temperature: -10-50 /-20-80.
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