["Precision Sound Tuning: Elevate your audio experience with Douk Audio EQ5 Tone Minis 5-band equalizer featuring independent op-amp processing for each frequency band (75Hz 400Hz 800Hz 4KHz 10KHz). This allows for precise sound adjustments compensating for speaker and acoustic imperfections and tailoring the audio to your preference." Wireless Hi-Fi Enjoyment: EQ5 Tone offers Bluetooth 5.0 connectivity enabling you to stream high-quality music wirelessly from your devices. Enjoy the convenience and freedom of wireless audio without compromising on sound quality. Real-Time Audio Monitoring with VU Meter: The dual large VU meters (45mm) provide an accurate real-time audio signal level display adding a dynamic visual element to your listening environment. The dedicated VU driver chip ensures the meters respond faithfully to the audio signal giving you a clear visual representation of the sound levels. (New version supports background light pointer speed and gain adjustment) Convenient Bypass and Balance Controls: The bypass function allows you to quickly switch off the EQ preamplification directing the audio signal from input to output without processing. The balance control feature ensures that the sound field positioning remains centered compensating for any left and right channel imbalances. Portable Design with Gold-Plated Interfaces: EQ5 Tone boasts an attractive all-metal case with aluminum knobs and gold-plated I/O interfaces for optimal signal transmission. Its compact size and DC 5V power requirement make it easy to carry and use in various settings providing high-quality audio enhancement wherever you go. Upgraded Version of EQ5 Pro: 1. Enhanced frequency range with more pronounced bass. 2. Enhanced low frequency performance. 3. VU Meter Enhancements: Speed / Brightness / Gain adjustment.]