HM-12 Bluetooth Module with Base Board HM12 V4.0 EDR BLE

BT Version: Bluetooth Specification V4.0 EDR and BLE
Send and receive maximum byte count is 90 bytes.
Working frequency: 2.4GHz ISM band
Modulation method: GFSK(Gaussian Frequency Shift Keying)
Speed: SPP: 50% serial port rate

BLE: 50% serial port rate
Security: Authentication and encryption
Service: L2CAP,SDP,RFCOMM,SPP

ATT,GATT, LE Service: 0xFFE0,Char: 0xFFE1
Power: +3.3VDC 50mA
Long range: Open space have 100 Meters with BLE
Power: In sleep mode 10-17mA, SPP mode 13mA, BLE mode 9.5mA 
Working temperature:–5 ~ +65 Centigrade
Size:26.9mm x 13mm x 2.2 mm