BGB101 Datasheet

Plug-and-play Bluetooth class 2 radio module, needs only external antenna and reference clock
Low current consumption from 2.8 V supply
Wide operating temperature range (-30 to + 85 Cel)
Small dimensions (10.5 x 8.5 x 1.8 mm)
Fully compliant to Bluetooth Radio Specification v1.1
High sensitivity (typical -82 dBm)
Advanced DC offset compensation for improved reception quality
RSSI with high dynamic range
Simple interfacing to baseband controller, control by 3-wire serial bus
Internal shielding for better EMI (Electro Magnetic Interference) immunity.

BGB101