[More points/details]: 3.5+2.5mm dual outputs, cVc 8.0 noise cancellation, in-vehicle mode, OLED display, FiiO Music app, Dual crystal oscillators and USB Audio Adapter mode.... [XMOS XUF208 USB chip]: BTR5 2021 headphone amps is capable of asynchronous audio decoding under USB Audio Class 2.0. As a USB DAC, the BTR5 2021 portable amplifier can decode up to 384kHz sampling rate and native DSD. PS: USB DAC functionality supports 2 modes, driverless USB 1.0 and high-performance USB 2.0 . [Support MQA ]: A new addition to the updated BTR5 2021 bluetooth headphone amps is support for MQA Renderer, allowing for high-resolution, master-level sound quality in reasonably sized files well-suited for your mobile device. PS: Supports up to MQA 16x decoding with applicable music apps. [Support full hi-res wireless Bluetooth format]: CSR8675 Bluetooth 5.0 receiver designed to deliver studio-quality sound through your ears WIRELESS - the bluetooth amplifier BTR5 2021's Bluetooth version 5.0 supporting high-resolution formats such as AAC/SBC/aptX/aptX Low Latency/aptX HD/LDAC up to 96kHz, you can get a totally portable yet excellent sounding setup with your device!. [High-performance DAC ES9219C*2]: For extremely detailed reproduction of sound, stronger, better performance.