EH-MC10 Bluetooth low energy single mode module is a single mode device targeted for low power sensors and accessories. 
The module offer all Bluetooth low energy features:radio,stack,profiles and application,so no external provides flexible hardware
interfaces to connect sensors,simple user interfaces or even displays directly to the module.                 
The module can be powered directly with a standard 3V coin cell batteries or pair of AAA lowest power sleep mode it
consumes only 600nA and will wake up in few hundred microseconds.

Radio feature:
Bluetooth 4.0 low energy radio 
Transmit power: +7.5 dBm
Receiver sensitivity: -92.5dBm
Integrated antenna
TX peak current: 18.2mA
RX peak current: 14.3mA
Dormant current: <600nA

Software features:
Ehware's host protocol
Embedded Ehware's Bluetooth Smart Stack
Ehware's ATCMD for standalone applications
Ehware's profile toolkit for developing Bluetooth Smart profile

Bluetooth features:
Bluetooth Smart(low energy)support
L2CAP,ATT,GATT,GAP and Security
Bluetooth Smart Profiles
Slave and master mode
Up to 8 connections in master mode
100Kbps + throughput
Over-the-Air firmware upgrade

MCU features
8051 microcontroller
256kB or 512kB E2PROM

Hardware features:
UART host inferface
SPI,I2C,PWM,UART,GPIO peripheral
10-bit ADC IOs
Temperature range: -30oC to +80oC
Dimensions: 17.7*11.95*1.6 mm
Power supply: 1.8- 3.6V
U.FL port