General Specification Brand Xiaomi Model Piston Basic Edition Color Black Cable Length 1.25mm Wearing Type In-ear Type Product Weight 14g Technical Parameters Conectivity Interface 3.5mm audio jack Rated Power 5mW Jack 3.5mm Impedance 32ohm Frequency Response 20-20000Hz Microphone Support Package Included: Original Xiaomi Piston Basic Edition In-ear Headset Earphone With Mic 1 x Original Xiaomi Earphone 2 x Pairs of Earphone Plug Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.