Device Features:
■ Bluetooth V4.0, Bluetooth Design Qualified,QDID:B016793
■ 80MHz RISC MCU and 80MIPS Kalimba DSP
■ Internal ROM, serial flash memory and EEPROM interfaces
■ Stereo codec with 2 microphone inputs
■ Radio includes integrated balun
■ 5-band fully configurable EQ
■ CSR's latest CVC technology for narrowband and wideband voice connections including wind noise reduction
■ Wideband speech supported by HFP v1.6 profile and mSBC codec
■ Voice recognition support for answering a call, enables true hands-free use
■ Multipoint HFP connection to 2 phones for voice
■ Multipoint A2DP connection enables a headset (A2DP) connection to 2 A2DP source devices for music playback
■ Secure simple pairing, CSR's proximity pairing and CSR's proximity connection
■ Audio interfaces: I²S and PCM
■ Serial interfaces: UART, USB v2.0 (full-speed), I²C and SPI
■ aptX, SBC, MP3 and AAC decoder support
■ Wired audio support (USB and analogue)
■ Support for smartphone/tablet applications
■ Integrated dual switch-mode regulators, linear regulators and battery charger
■ External crystal load capacitors not required for typical crystals
■ 3 LED outputs
■ Module Dimension: 13.5mm(L) x 11mm(W)

Applications
■ Stereo headsets
■ Wired stereo headsets and headphones
■ Portable stereo speakers
The enhanced Kalimba DSP coprocessor with 80MIPS supports enhanced audio and DSP applications.
The integrated audio codec supports 2 channels of ADC, 2 digital microphone inputs and stereo output, as well as a variety of audio standards.