Sony MDR-EX155 In-ear Headphones

MDR-EX155 in-ear headphones come in a range of 4 vibrant colours, so you’ll be able to find the perfect pair to suit your style. The 9 mm neodymium drivers deliver a punchy audio response, while the 5 Hz–24 kHz frequency range is ideal for most of today’s popular music styles.
Troubleshooting steps - 1. Please check the earphone jack is inserted in the cell phone properly or not.2. If problem still persists kindly check in some other cell phone.3. If problem is still there then they can visit nearest authorized service center can be easily replaced at no cost at authorized service center
Product Details:

Headphone Type: Closed, Dynamic
 Driver Unit: 9 mm, dome type (CCAW Voice Coil)
 Magnet: Neodymium
 Impedance (Ohm): 16 ohm (1 kHz)
 Frequency response: 5Hz-24,000Hz
 Sensitivities (dB/mW): 103 dB / mW
 Cord length: Approx. 1.2 m, Litz cable, Y-type
 Plug: L-shaped gold-plated stereo mini plug