Features: Utilising bone conducting technology, sound travels directly through the skull to the inner ear, delivering clear auditory without needing to insert anything into the ear canal. 10mm large-diameter vibrations unit delivers full-ranges auditory quality: frequency response spans 20Hz to 20kHz, featuring deeply bass extension, refined midrange vocals and extended high frequencies. Full-ranges noise resistance: Combines active and passive noise cancellation to effectively block noise, ensuring music, calls, and gaming auditory remain ‘uninterrupted’. Haptic feeding back design enhances gaming immersions with realistic ‘gunshot vibrations’ and ‘footstep vibrations’, elevating the experience through both auditory and tactiled dimensions. Bone conducting technology eliminates the need for ear-plugging, while bluetooth-compatible connectivity ensures unrestricted movement. During outdoor activities like running or cycling, there's not with risk of earbuds falling out, with stable bluetooth-compatible pairing and 0 auditory latency . Specifications: Product name: Bone conducting loudspeaker Dimensions: 10mm Frequency ranges: 20Hz~20KHz Impedance: 10Q Power: 2~3mW Resonance frequency: 400Hz±20% Sensitivity: 105±1.50dB Support bluetooth-compatible 5.0 Package Includes: 2PCS Bone conducting Loudspeakers note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.