The RN42-HID Bluetooth Module is pre-programmed with an extended HID (Human Interface Device) profile, enabling the development of products such as game controllers, keyboards, mice and other pointing devices. The basic HID capability has been extended to allow control and programmability of devices such as the Apple iPod, iPhone and iPad. The RN42-HID Bluetooth Module offers three modes of operation:
Presenter Mode: Enables the control of presentation software such as Microsoft PowerPoint
Custom Mode: Enables programming of pushbuttons to send a sequence of key strokes.
Music Mode: Enables the control of music player functions such as play, pause, switching tracks and volume controls.

RN42-HID-RD1 iRemote Control Reference Design Module (RS 814-9002)
RN42-HID Bluetooth Module
7 x Programmable pushbuttons
2 x Status LEDs
Battery holder

RN42-HID Bluetooth Module (RS 841-7484)
Bluetooth 2.1 + EDR (Enhanced Data Rate) transceiver module
Backwards-compatible with Bluetooth 2.0, 1.2 and 1.1
RF Frequency Range: 2.402 to 2.480GHz with 79 channels
Modulation: GFSK with FHSS
RF Output Power: +4dBm
Receiver Sensitivity: -80dBm
Host communication: serial UART with RTS/CTS flow control
Sustained SPP data rates: 240kbps (slave), 300kbps (master)
Embedded Bluetooth stack: GAP, SDP, RFCOMM and L2CAP protocols, with SPP and HID profiles
AES-128 encryption
PCB antenna
Power supply: +3.0V to +3.6Vdc
Operating temperature range: -40 to +85°C
Applications: Cable replacement, Barcode scanners, Measurement & monitoring systems, Industrial sensors & controls, Medical devices, Remote controls

Bluetooth - Microchip