With professional audio power amplifier chip, the power amplifier function can amplify 3.5mm headphone output audio signal, which is perfectly compatible with gaming headphone.You can enjoy lossless and high-fidelity sound effect because the high-performance chip and Bluetooth-compatible 5.0 technology allow for stable and quick transmission.It is made of aluminum alloy shell, which provides you with high-quality sound and comprehensive shielding without signal interference.The length of the product is 7.1cm, the width is 5.9cm and the height is 2.5cm.It connects different audio interfaces to analog amplifiers, which is perfect for home cinemas, teaching, training structures, conference rooms, electrical stores and other places.Item Name: Audio ConverterMaterial: Aluminum AlloyBluetooth-compatible Version: 5.0 Power Input: 5V Transmission Distance: Up to 20m Output: 3.5mm Audio Input Mode: Coaxial/Optical Fiber/USB Flash Disk/Bluetooth-compatible/Aux (L/R) Features: 3-in-1, Stable Signal, HiFi SoundSize Details: 7.1cm x 5.9cm x 2.5cm/2.8" x 2.32" x 0.98" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Audio Converter 1 x Coaxial Cable 1 x 3.5mm Audio Cable 1 x Power Supply Cable