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The ALC887 is a 7.1 Channel High Definition Audio Codec with two independent SPDIF outputs. Featuring eight channels of DAC support 7.1 sound playback, and integrates two stereo ADC that can support a stereo microphone, and feature Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS) for voice applications.

The BK3431 chip is a highly integrated Bluetooth 4.0 low energy single mode device. It integrates a high-performance RF transceiver, baseband, ARM-core Micro processor, rich feature peripheral units, programmable protocol and profile to support BLE application. The Flash program memory makes it suitable for customized applications.