Features Specifications:SELL Ear buds With Embedded Gem  This item will ship out in 5-7 working days upon payment confirmation. Specifications: Driver Unit: 10mm Impedance: 32 Sensitivity: 102db?db Frequency Response: 20Hz - 20KHz Stereo Plug: 3.5mm Cord length: 1.2m Color: blue, pink, red and green (Cartons will contain mixed amounts (between 10-20 units) of 2-4 different colors) Warranty period: 3 months In retail packaging Standard Certification: Not available Export Carton: 40 pieces per carton Size: 28 x 20 x 18cm Weight: 2.5kg