Annadue Portable Headphones Amplifier - Stereo Noise Cancellation Rechargeable

3. Advanced Noise Cancellation Technology: Featuring intelligent noise cancellation technology, this amplifier minimizes background interference while enhancing speech frequencies. It automatically adapts to your environment, ensuring conversations remain clear even in noisy settings for a more confident and engaging social experience. 4. Feedback Elimination: Crafted for clarity and longevity, this device is equipped with the latest feedback reducing microphone and dedicated feedback suppression technology. It actively eliminates screeching noises and acoustic feedback, providing clear sound for television viewing and conversations, solving common issues found in standard amplifiers. 5. Manual Adjustment, Rechargeable: Enjoy the convenience of manually adjustable volume levels, with the innovative feature of independently controlling left and right sound channels for a customized listening experience. Say goodbye to the hassle of frequent battery replacements! Enjoy long lasting performance without the hassle of frequent recharging. Specification: Item Type: Sound Amplifier Material: ABS Operating Frequency Range: 2.402GHz-2.480GHz Frequency Response Range: 20Hz-20KHz Battery Type: Li Battery 190mAh (Built in) Charging Interface: USB, TP C Charging Port How to Use: Plug in your headphones upon startup to begin using. Package List: 1 x Host 1 x Earphones 1 x USB Charging Cable 1 x User Manual 4 x Ear Tips