•Charging box with LCD screen with charge and remaining battery indication. 90° adjustable rotation design so you can find the right angle for your use. • ACS surround sound, allowing you to hear more details, with directional transmission and integrated automatic sound beam angle adjustment of +25°. • Intelligent noise reduction for maximum immersion. It accurately captures voices and filters out interference, significantly reducing noise and allowing you to communicate clearly even in noisy environments. •Integrated touch controls on the side of the device: volume control, playback controls (play, pause, skip), as well as answering, rejecting, and hanging up calls. Access to the voice assistant. •Language translator with different modes: silent mode, only shows the translation without any sound; earphone mode, talk into your phone and hear the translation through your earphone; speaker mode, tap to start speaking and when you stop, the translated voice will be played from the phone; dual earphone mode, one person uses one earphone, speaks into the phone and hears the translated voice through the earphone. ( (App required) • It also has a meeting assistant that allows you to record, save, and translate the conversations held during your meeting, call, or video conference. ( App required) • Spatial audio features with two different modes so you can choose the right one for every situation: music mode or game mode. •Automatic connection (once paired on first use). With Bluetooth 5.4 latest generation with low consumption and long range. In addition, it has a high-capacity battery with up to 8 hours of battery life. •Includes USB Type-C charging cable x1, charging box x1, earphones x2. nBluetooth version: 5.4 Supported protocols: A2DP, AVRCP, HFP Bluetooth range: about 10 meters Sensitivity: 95dB Voltage: 3.1-42V Charging voltage: 5V-1A Earphone battery: 2 x 40 mAh Charging case battery: 300 mAh Charging time: 1-2 hours Call usage time: 1-2 hours Music usage time: 6-8 hours CE and RoHS certified. ABS, metal alloy. For the headphones to fully function, you need to download a free app for synchronization. To do this: • Scan the QR code included in the instruction manual and download the app. •You can also download the “AICOOL Market” application directly from the App Store (iOS). •Once downloaded and installed, open it and accept all requested permissions; pair the headphones with your mobile phone via Bluetooth and the app.