📌LAB POINTS audiophile wireless music streaming in high resolution via Bluetooth 5.0 adds Bluetooth receiving capabilities to any stereo system new advanced aptX-HD codec w/ increased range + transmission bandwidth supports aptX, aptX-HD & SBC codecs for almost CD quality sound dedicated high-quality analog output buffer stage fast auto pairing (3 to 5 seconds), up to 8 different Bluetooth sources are memorized works within a range of approximately 10 meters / 32 feet RCA stereo analog + digital TOSlink outputs antenna + outboard power supply included handmade in Europe "The Bluetooth Box S2 HD connects your smartphone, computer, or any Bluetooth compatible source to your hi-fi system for wireless streaming, using latest technologies like Bluetooth 5.0 and aptX-HD for elevating your mobile Bluetooth listening to true Hi-Fi stereo levels." 🔎TECH SPECS effective working range: up to 10m / 32ft (direct visibility) bluetooth profile: 5.0 / A2DP supported codecs: aptX, aptX-HD, SBC frequency: 2402 ~ 2480 Mhz sensitivity: - 88dBm audio output Level (nominal): 2 Vrms frequency response: 20Hz – 20kHz analogue output: RCA stereo digital output: optical S/PDIF (Toslink) dimensions: 4.5" x 1.41" x 4" / 116 x 37 x 103mm weight: 0.7 lbs / 320g without power supply