... .Audio Interface:PCM, I2S, SPDIF 3.Flash Memory Size:8Mbit bluetooth module with Low Price, High Performance, International Approvals, Prompt Delivery ... .Operating Frequency Band:2.4GHz -2.48GHz unlicensed ISM band6.Bluetooth Specification: V1.27.Output Power Class:Class 28.Operating Voltage ... complete gps solution.Electrical specification can be customized (Manufacture) Chipset bluetooth module