1、Professional: This digital to analog audio converter is specially designed for home or professional audio switching, with stable connection performance. 2、Input And Output: Convert bluetooth, coaxial, for Toslink, USB, MIC audio signals to analog L/R audio, connect to external devices, such as amplifiers, through standard RCA type jacks. 3、Compatible: Bluetooth audio adapter supports 5mm/0.1in headphone jack output, which can be connected to headsets, PCs, etc, with good compatibility. 4、High Fidelity: Audio converter built in high fidelity amplifier chip, headset and RCA output port can easily receive 16‑300Ω high fidelity headphones. 5、Multi Functional: DAC converter supports power off, volume adjustment, multiple functions, easier to adapt to different sources and different environments. 1 x Audio Converter1 x Antenna1 x Charging Cable1 x Remote Control1 x Audio Optical Cable1 x Manual Item Type: Audio ConverterMaterial: Aluminium AlloyInput Audio: Bluetooth 5.0, Coaxial, for Toslink, USB, MICOutput Audio: L/R + 3.5mm/ 0.1in AudioSampling Rate: 32, 44.1, 48 and 96kHzWorking Temperature: 0 ℃ to +70℃Working Humidity: 10% to 85% RH (Non Condensing)Storage Temperature: -10℃ to +80℃Storage Humidity: 5% to 90% RH (Non Condensing)External Power Supply: 5V DC at 1APower Consumption: 5W (Maximum)Remote Control Battery Type: 1 x Button Battery CR2025 (Included)Battery Capacity: 140mAh