Brand: Langsdom Model: L7 Impedance: 16Ω ± 15% Sensitivity: 105 dB ± 3dB Driver Size:10mm Frequency Range: 13Hz-22.5KHz Cable Length:0.75m Line Length:0.8m Support APP:No Active Noise-Cancellation:No Volume Control:Yes Support Memory Card:No Waterproof:Yes Connectors:USB Talk time:up to 4 hours Standby time:up to 120 hours Sound style:Bass/Stereo/SRS Main functions:Play/Pause, previous/next track,Mic The strong 10mm magnet driver provides outstanding audio clarity. Together with the in-ear design, L7 reduces ambient noise to a minimum, and minimizes sound leakages significantly. Included set of ear-adapters guarantees an individualized fit with three sizes to choose from. In addition, with slightly smaller headphone ear shell, L7 fit for both men and women. Brand Langsdom SKU LA622EL0II4PKNAFAMZ-140710