3 kinds avalible:
Type1 V1.5 Bluetooth version
Type2 V1.5 USB version: HS CAN/MS CAN switch + CH340+25K80chip
Type3 V1.5 Bluetooth version: HS CAN/MS CAN switch + No FTDI chip + PIC18F25K80chip

ELM327 USB/Bluetooth With Switch V1.5 OBD2 you will be able to:
Read and clear diagnostic trouble codes
Air Flow Rate
display and read
Engine RPM
Vehicle Speed
Intake Air Temperature
Long Term Fuel Trim
Short Term Fuel Trim
Timing Advance
Oxygen Sensors
Fuel System status

Modified EML:
Please note that for many F.o.r.d and Mazda models (approximately since 2003-2004) are equipped with MS CAN bus, in addition to the regular HS CAN bus. In contrast to HS CAN bus, MS CAN bus is not supported by the stock ELM327, because MS CAN
is a manufacturer-specific solution and located on non-OBD2 pins. This ELM327 has been modified to allow it to implement the MS CAN bus.
ELM327 supports HS CAN from the stock, because for F.o.r.d HS CAN completely matches to the OBD2 standards. It occupies pins 6 and 14. MS CAN bus occupies pins 3 and 11.

Supported Vehicles:
All for For-d, for Ma-zda, for Lin-coln, for Mercury vehicles that can be addressed using an ELM via an OBDII connector.

Supported software:
ELMconfig
Forscan
FOCCCUS
FF2

V1.5 Bluetooth version 
Functions:
1) Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database).
2) Clear trouble codes and turn off the MIL ("Check Engine" light)
3) Display current sensor data, including:
4) Engine RPM
5) Calculated Load Value
6) Coolant Temperature
7) Fuel System Status
8) Vehicle Speed
9) Short Term Fuel Trim
10) Long Term Fuel Trim
11) Intake Manifold Pressure
12) Timing Advance
13) Intake Air Temperature
14) Air Flow Rate
15) Absolute Throttle Position
16) Oxygen sensor voltages/associated short term fuel trims
17) Fuel System status
18) Fuel Pressure

Packing List:
1 * ELM327 diagnostic interface