A8 In‎-ear Sports Headset Line Control Headphone Earphone Stereo Music   Features‎:‎ ‎- Microphone adopts noise cancellation technology and provides you clear calls ‎- Exquisite detail design offers you pleasant enjoyment ‎- Compatible with many mobile phones‎,‎ tablet computers and music players ‎- Silicone ear caps‎,‎ comfortable to wear and not easy to fall off ‎- Surround design‎,‎ strengthen bass effect and sensitivity Specifications‎:‎ ‎- Impedance‎:‎ 32 ohm ‎- Cable length‎:‎ 1200mm ‎- Diameter of loudspeaker‎:‎ 10mm ‎- Sensitivity‎:‎ 87 ‎- 93dB ‎- Frequency range‎:‎ 20 ‎- 20000KHz   Communication‎:‎ Wired Connectors‎:‎ 3.5mm Function‎:‎ Microphone‎,‎Noise Cancelling Style‎:‎ In‎-Ear   Package weight‎:‎ 0.058 kg Package Size‎(‎L x W x H‎)‎‎:‎ 15.00 x 8.00 x 2.00 cm / 5.91 x 3.15 x 0.79 inches Package Contents‎:‎ 1 x In‎-ear Sports Headset‎,‎ 4 x Ear Cap‎,‎ 1 x Clip