• No need to drive, plug and play: multiple interface designs meet various needs, allowing old devices to easily have Bluetooth-compatible function
• Multi-device expansion port, connection effect is better: Bluetooth-compatible audio receiving method, 3.5mm AUX/coaxial/optical audio output, multi-device expansion port, let you feel better connection effect
• Upgrade Bluetooth-compatible speakers: connect old-fashioned speakers or power amplifiers with 3.5mm AUX/coaxial/optical interfaces, optical fiber coaxial interfaces, and solve the problem that the speakers without Bluetooth-compatible function cannot use Bluetooth-compatible to play 
• 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
• Support APTX-HD low latency + high restoration: High-fidelity APTX-HD allows Bluetooth-compatible 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
• Large-capacity lithium battery and long battery life experience: 500mAh large-capacity lithium battery, battery life can reach 10 hours
• CD lossless sound quality, APTX-HD high-definition decoding: APTX-HD decoding technology allows Bluetooth-compatible to have CD-level sound quality and enjoy lossless and shocking sound quality
• Bluetooth-compatible 5.2 chip: Bluetooth-compatible 5.2 chip, the signal transmission is stable, low delay + high restoration, so that the audio signal can be transmitted wirelessly
• With antenna: Long-distance, stable transmission, 15M barrier-free transmission distance

Specification:

• Bluetooth-compatible version: Qualcomm Bluetooth-compatible V5.2
• Material: aluminum alloy
• Interface: 3.5mm AUX/coaxial/optical (note: only one interface output is supported, three interfaces do not support simultaneous audio output)
• Transmission distance: about 15M
• Charging type: Type-C/built-in lithium battery
• Battery capacity: 500mAh
• Working time: about 10 hours
• Audio codec: APTX/APTX-HD/SBC/AAC
• Range: 2400MHz-2483.5Mhz
• Frequency response: 20Hz-20kHz

Note: 3.5mm AUX, RCA, coaxial, optical audio cables are not included in the package.