Bluetooth 5.2 Audio Receiver 3.5MM AUX Coaxial Fiber APTX HD Bluetooth Adapter Features: 1. No need for driver plug and play: multiple interface designs to meet various needs, allowing old devices to easily have Bluetooth 2. Better connection effect of multi-device expansion port: Bluetooth audio receiving mode, 3.5mm AUXcoaxialoptical audio output, multi-device expansion port, let you feel better connection effect. 3. Upgrade Bluetooth speakers: connect old speakers or power amplifiers with 3.5mm AUXcoaxialoptical fiber interfaces and fiber optic coaxial interfaces to solve the problem that the speakers cannot use Bluetooth to play without Bluetooth 4. Support a variety of power amplifiers: Compatible with various old-fashioned power amplifiers, strong signal without delay, APTX-HD high-fidelity, enjoy CD-level sound quality 5. Support APTX-HD low latency + high restoration: High-fidelity APTX-HD allows Bluetooth to have CD-level sound quality HiFi shocking lossless sound quality, high-fidelity audio data restoration. Let the wireless connection enjoy the wired connection sound quality experience 6. Long battery life experience with large-capacity lithium battery: 500mAh large-capacity lithium battery, battery life can reach 10 hours 7. CD lossless sound quality APTX-HD high-definition decoding: APTX-HD decoding technology allows Bluetooth to have CD-level sound quality and enjoy lossless shocking sound quality 8. Bluetooth 5.2 chip music starts from the core Bluetooth 5.2 chip, the signal transmission is stable, low delay + high restoration, so that the audio signal can be transmitted wirelessly 9. With antenna, long distance, stable transmission 15M barrier-free transmission and reception without pressure Parameter: 1. Bluetooth version: Qualcomm Bluetooth V5.2 2. Material: aluminum alloy 3. Interface: 3.5mm AUXcoaxialoptical (Note: only one interface output is supported, three interfaces do not support simultaneous audio output) 4. Transmission distance: about 15M 5. Charging type: