VARIAN: STARFIELD = STARFIELD FULL SET BUNDLE PANSY = STARFIELD FULL SET + KABEL PANSY SEHARGA 600.000 +Littleblack BT = Starfield fullset+Modul Blutut Littleblack Starfield continues to adopt the 0.78 2 pin inward universal interface, which meets the users #39; requirements for extensibility and playability of the earphones. If there is any further needs for the cable #39;s sound quality, you can change it into other upgraded cables, that means there will be more options for the users when choosing upgraded cables. If you pursue comfort when you are exercise, you can choose our bluetooth cable: #34;littleblack #34;, and then you can change the Starfield into bluetooth earphones with the same excellent sound quality by replacing the bluetooth cable. Basic specification for Starfield: Driver: Carbon Nanotube diaphragm- 10mm Dual cavity dynamic driver Detachable cable standard: 24AWG Litz 4N OFC Interface: 0.78 2pin Sensitivity: 122dB/Vrms(@1khz) Impedance: 32Ω±15% (@1khz) Frequency response: 10Hz-36000 Hz (free field. 1/4 inch MIC) Effective frequency response: 20Hz-20000 Hz (IEC60318-4)