Description: Experience high-quality audio with this versatile player. Supporting various audio formats such as MP3, WAV, WMA, APE, and FLAC, you can enjoy your favorite music in exceptional clarity. The player also offers convenient functions like fast-forward, rewind, and folder switching for a personalized listening experience. Enhance your audio setup with the BT 5.1 audio transmitter, allowing seamless pairing of your computer with Bluetooth-compatible headphones or speakers. Enjoy wireless listening with fast and reliable connections for uninterrupted music enjoyment. Take control of your computer's audio output with the USB computer volume controller. Featuring a 360-degree knob for precise volume adjustments and a one-touch mute function, you can easily manage your sound settings with ease. Say goodbye to crawling under your desk with the audio transmitter. Simply pinsert your headphones into the 3.5mm headphone jack and enjoy crystal-clear sound from your computer without any hassle. With its USB cable, this adapter offers a hassle-free setup experience. Easily integrate the device into your audio system without the need for complicated installations. Upgrade your audio experience today with this innovative and user-friendly device. Item Name: Volume Control Knob Material: Plastic BT Version: BT V5.1+BR+EDR+BLE BT Protocol: A2DP, AVCTP, AVDTP, AVCP, HFP, SPP, AT, GAP, GATT, RFCOMM, SDP USB Flash Drive Input: FAT32 Up to 32GB Music Formats: MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, AIFC Signal-to-noise Ratio: ≥90 DB Headphone Jack: 3.5mm Audio Jack Features: Mini Size, Portable, Easy to Use Size Details: 0.94cm x 0.63cm x 0.16cm/0.37" x 0.25" x 0.06" (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 Volume Control Knob 1 x USB Cable Decode various audio formats like MP3, WAV, WMA, APE, and FLAC for a diverse music experience. Enjoy fast-forward, rewind, and folder switching functions for seamless music navigation. Pair your computer with BT-enabled headphones or speakers using the Audio Transmitter for quick and stable wireless connections. Experience hassle-free listening with seamless Bluetooth-compatible technology. The USB computer volume controller features a 360-degree knob for accurate volume adjustments. Enjoy one-touch mute functionality to easily manage your computer's audio output with precision. Simply insert your headphones into the 3.5mm jack of the external sound card adapter for instant sound access without complex setups. Say goodbye to searching under desks for headphone jacks. Seamlessly integrate the adapter into your setup with the USB cable feature. Enjoy easy connectivity without the need for intricate installation processes.