T2, Turbine 2, releases globally in Nov. 2014, a upgraded version of H-Turbine. It's been 6 months, our engineers redesign Turbine idea, trying to bring the best music experience for you. Besides the amazing bass as H-Turbine, T2 is foldable and easy to carry, more comfortable to wear, more metallic in look, and strengthened in headband. 
Color: black, white 
Specifications: 
Bluetooth version: V4.1 
Profiles: A2DP, AVRCP, HSP, HFP 
Drive: 2×Φ2.24inches 
Impedance: 16Ω 
Frequency response: 20 Hz -20KHz 
Sensitivity: 110dB 
THD: