FiiO LC-BT1 HiFi Wireless Bluetooth Earphone Cable with aptX/AAC/SBC Support and Mic, 7H Playtime and App Control (MMCX)The LC BT1 headphone cable utilizes the Qualcomm QC3005 Bluetooth 5. 0 chip, which supports the SBC, AAC, and aptX audio codecs to ensure you get the best out of your music. The QC3005 Bluetooth chip directly outputs the signal received through IIS to the independent AK4331 DAC, resulting in a significantly and obviously cleaner and higher fidelity sound. The LC BT1 upgrade cable consumes extremely little power, giving battery life up to 8 hours And