Equipped with a Bluetooth portable DAC headphone amplifier FiiO BTR3K has become the successor to the BTR3 model. Unlike BTR3, the novelty received a dual DAC AK4377A. The FiiO BTR3K is also equipped with a Bluetooth module with a Qualcomm CSR8675 chip. As a result, support for the latest codecs is supported: SBC, AAC, aptX, aptX HD, aptX Low Latency and LDAC.
Bluetooth 5.0 used in the device supports A2DP, AVRCP, HFP, and HSP profiles. Thus, using wireless communication, the model works with high bitrates of a digital signal, providing low latency. As a hands free component, the FiiO BTR3K also has an on-board microphone. Qualcomm cVc noise canceling technology is designed to provide enhanced telephony quality.
FiiO BTR3K is equipped with a USB Type-C connector to receive signals from digital sources via a cable (16-bit/48 kHz PCM supported). The same connector is also used for charging the built-in battery. Depending on the operating mode, one charge will last from 7.5 to 11 hours of operation. The charge indicator is a color led.
The new product has two connectors for connecting headphones — balanced and unbalanced, and the BTR3K implements automatic adjustment to the type of headphones connected to it. The device is able to remember the current volume settings and settings on the audio source. It is assembled in a compact black case weighing only 23.5g. there are four control buttons on the case.