【Immersive Audio Quality】Equipped with 10mm dynamic drivers, these Bluetooth earbuds deliver balanced, stable, and high-fidelity sound, perfect for music lovers and calls alike 【Bluetooth 5.3 Technology】Enjoy a seamless, low-latency connection with the latest Bluetooth 5.3, ensuring strong signal stability and reduced power consumption for extended listening sessions 【Crystal-Clear Calls with ENC】Featuring four integrated microphones and advanced Environmental Noise Cancellation (ENC), these earbuds ensure your voice is heard clearly even in noisy environments 【Smart Touch Control】Intuitive touch-sensitive controls let you manage music playback, adjust volume, and answer calls effortlessly without reaching for your device 【Stylish Charging Case】The included charging case is wrapped in premium woven fabric, offering both durability and a sophisticated design, making it a practical and stylish accessory Specifications: Model: LX-5100 Bluetooth version: 5.3 Wireless support protocol: A2DP AVRCP/HFP/HSP/ Operation distance: >10 meters Driver unit: 10mm Impedance: 32Ω Sensitivity: 100±3dB SPL at 1kHz Frequency response: 20~20,000Hz Battery capacity: 40mAh (single earbud) Charging case battery capacity: 300mAh Charging time: 1 hour for earphones, 2 hours for charging case Music time: 4.5 hours Support functions: answer/call/pause/play/previous song/next song/volume +/volume -