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- Push type volume button‎,‎ convenient to control Specifications‎:‎ ‎- Impedance‎:‎ 32 ohm‎- Cable length‎:‎ 1200mm‎- Diameter of loudspeaker‎:‎ 10mm‎- Sensitivity‎:‎ 87 ‎- 93dB‎- Frequency range‎:‎ 20 ‎- 20000KHz Connectors‎:‎ 3.5mm Function‎:‎ Microphone‎,‎Noise Cancelling Style‎:‎ In‎-Ear Use‎:‎ Computer‎,‎Mobile phone‎,‎Portable Media Player 0.044 Package weight‎:‎ 0.069 kg Package Size‎(‎L x W x H‎)‎‎:‎ 18.00 x 8.50 x 2.50 cm / 7.09 x 3.35 x 0.98 inches Package Contents‎:‎ 1 x A8 In‎-ear Sports Headset‎,‎ 1 x Leather Clip‎,‎ 1 x Plastic Clip‎,‎ 4 x Ear Cap