Feature: 1. DUAL 15V ARCHITECTURE: Audiophile preamplification circuit; equipped with JRC op amp muses02; unique three OPA1612 op amp LPF filter circuit. 2. BLUETOOTH 5.1 CHIP: Imported for Qualcomm QCC5125 Bluetooth 5.1 chip. Support Ldac, Aptx adaptive, Aptx‑LL, Aptx‑HD, SBC, AAC and other protocols. 3. APPLICABLE DEVICES: Support for OS X, for Linux, for RPi, and OTG enabled cell phones (for Android 4.4 or above), plug and play, no driver installation. As many as 7 kinds of filter play, with different op amps, make the sound more varied. 4. MULTI FUNCTION: Professional Bluetooth wireless receiver decoder, up to 32 bit 384k DSD hard decoder computer USB decoder, audiophile sound 24 bit 96khz coaxial fiber optic input decoder, large thrust monitoring ear amplifier. 5. HIGH PERFORMANCE: To meet the audiophile recording engineer, sound production, headphone users on the distortion, sound quality and thrust of the triple requirements; headset insertion auto detection, headphones on automatically disconnect the rear output, headphones out automatically connected to the rear output. Specification: Item Type: Bluetooth Sound Decoder USB Input Parameters DSD: Compatible with 64/128/256/512 Formats, 2.82‑22.2Mhz PCM 44.1‑192khz 6.35 Output Power: 90mw/600Ω, 180mw/300Ω, 450mw/100Ω, 610mw/62Ω, 910mw/32Ω, 1000mw/16Ω RCA Output Specification Parameters SNR: ≥105dB Distortion: ≤0.003% Frequency Response: 20hz to 30khz Voltage: 100‑240V Remote Control Battery Specification: 1 x CR2025 Battery (not Included). Package List: 1 x Decoder1 x Instruction Manual1 x Remote Control1 x USB Cable1 x Power Cord1 x Signal Stick1 x Adaptor