Model number: TST-SU-EP-04
Style: in-ear
Communication: wired
Connector: 3.5mm
Usage: mobile phones
Function: microphone
Earpiece: double
Design: earbud
Earpiece design: canal earbud (in-ear canal)
Impedance: 32Ω (power on)
Sensitivity: (at 100Hz): 109dB SPL/mW
Frequency: 12 - 22,000Hz
Headphone driver unit: 9mm, dome type (CCAW)

Compact design
2 speakers in each ear piece
Balanced sound with full frequency range
Dynamic bass and clear high-tone
Tangle-free flat cable, perfect for travelling
Size (LxWxH): 4.6 x 2.5 x 0.6-inch