•Charging box with LCD screen with charge and remaining battery indication. ACS Panoramic Sound, which lets you hear more details, with directional sound that eliminates sound leakage. •Intelligent ambient noise reduction significantly improves voice clarity during calls. •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. •Translator with 144 languages and with different modes: silent mode, only shows the translation without any sound; headset mode, talk to your phone and hear the translation through your headphones; speaker mode, tap to start speaking and when you stop, the translated voice will be played from the phone; two headphones mode, one person uses one headset, speaks into the phone and hears the translated voice through the headset. ( (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 5 hours of battery life. •Includes USB Type-C charging cable x1, charging case x1, earphones x2, hanging strap x1. nBluetooth version: 5.4 Supported modes: AAC/SBC Protocol: A2DP, AVRCP, HFP Bluetooth distance: about 10 meters Bluetooth frequency: 2.4GHz - 2.48GHZ Frequency response range: 20Hz – 20KHz Sensitivity: 100dB±3dB Impedance: 32Ω ±15Ω Rated power: 5mW Earphone battery: 2 x 40mAh Charging case battery: 300mAh Charging time: 1.5 hours Usage time: 4-5 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.