Sunstech HPN600, NB-110 or SSH B003?

Sunstech HPN600 (Real ones)

Specification:

Compatible with all types of player

2 x 30 mm earpads

Maximum input power: 30 mW

Cable length: 1.2 m

Frequency response: 20-20 KHz

Impedance: 32 ohms +/- 10%

Sensitivity (up to 1 KHz): 105 dB +/- 3 dB

Interchangeable covers

3.5 mm jack

NB-110

Specification:

Driver unit: ¢27mm Speaker

Frequency response: 20-20K Hz

Impedance: 32ohm±10%

Sensitivity: 105dB S.P.L (at  1Khz±3dB)

Input connection: 3.5mm stereo plug

Cord Length: 1.2m±10%

Logo: with or without optional

Color: optional

Packing: blister, giftbox, Poly bag

Suitable for MP3/MP4/Ipod/DVD/CD

Key word: Headphones, Earphfones, Headphones and Earphones, MP3 earphones

                         SSH B003

Specifications:
Driver Unit: 30 MM speaker

Frequency response: 20-20KHzImpedance: 32Ω

Sensitivity: 98dB±3dB(at 1 KHz)

Max Input Power: 30mW

Plug: 3.5mm stereo

Cord Length: 1.2M