Descriptions‎:‎Macaw GT100s In‎-ear Earphones features changeable tuning click so that you can simply realize the ideal sound according to the different types of music‎.‎ With inversion unit design‎,‎ it redefines the HiFi earphones and you will experience more soft and comfortable hearing in the same cavity space‎.‎ Super bass is also a highlight of GT100s earphones‎,‎ just wearing it and enjoying a detailed and delicate auditory feast‎.‎ Main Features‎:‎Changeable Tuning Click‎:‎ Enables you to enjoy the different types music completely and ideally ‎(‎ Come with 2 pairs tuning click‎)‎Inversion Unit‎:‎ Provides more comfortable hearingSuper Bass‎:‎ Perfect hearing feels for youBuilt‎-in Mic‎:‎ Supports hands‎-free callsOn‎-cord Control‎:‎ Supports answer / hang up calls by one‎-keyUniversal 3.5mm Plug‎:‎ Applied to all of the 3.5mm jack audio devices Brand‎:‎ Macaw Model‎:‎ GT100s Type‎:‎ In‎-Ear Wearing type‎:‎ In‎-Ear Function‎:‎ Answering Phone‎,‎HiFi‎,‎Microphone‎,‎Song Switching Color‎:‎ Black‎,‎Silver Connectivity‎:‎ Wired Application‎:‎ Mobile phone‎,‎Portable Media Player‎,‎Sport Plug Type‎:‎ 3.5mm‎,‎Full‎-sized Cable Length ‎(‎m‎)‎‎:‎ 1.35 m Frequency response‎:‎ 5Hz ‎- 16KHz Impedance‎:‎ 16ohms Sensitivity‎:‎ 100dB Compatible with‎:‎ Mobile phone 0.350 Package weight‎:‎ 0.393 kg Package size ‎(‎L x W x H‎)‎‎:‎ 12.00 x 12.00 x 5.00 cm / 4.72 x 4.72 x 1.97 inches Package Contents‎:‎ 1 x Macaw GT100s Earphones‎,‎ 3 x Silicone Earbud Tips ‎(‎ Pair‎)‎‎,‎ 2 x Memory Foam Earbud Tips ‎(‎ Pair ‎)‎‎,‎ 2 x Tuning Click ‎(‎ Pair ‎)‎‎,‎ 1 x Storage Bag‎,‎ 1 x English and Chinese User Manual