The flykantech.com BT313 is a versatile Bluetooth audio receiver/transmitter operating in the 2.4GHz-2.485GHz range, featuring Bluetooth 5.4 Technology. With a transmission distance of up to 10 meters, it supports A2DP, AVRCP, HSP, and HFP profiles, ensuring low-latency audio. The frequency response ranges from 20Hz to 20kHz, with a signal-to-noise ratio of 85dB. It easily switches between RX and TX Modes, offering multiple input/output options like 3.5mm, Optical, Coaxial, and USB, all while providing a user-friendly design with intuitive controls.