Good stereo quality: durable aircraft grade aluminium cables that can withstand pull and tug. Gold-plated USB Type-C sockets without audio loss, wear-resistant and oxidation resistant. Headphones made of high-quality materials for a long service life. Noise cancellation technology for natural sound quality, surround bass system for clear treble and balanced volume. Built-in high-performance speakers with wider frequency range. Brings you high stereo music and clear voice. For the Gamurry headphones, there are three sets of soft silicone rubber earbuds, choose the right size that fits your ear perfectly (L/M/S), giving you a custom fit and high attenuation of ambient noise. Tips. Please use a medium volume when using it in daily life, so as not to damage your ears with too much volume. If you have any questions, please feel free to contact us. We offer you first-class customer service or free replacement. Product details: Compatible system: Android, Windows, iOS Combined driver size: 10 mm Maximum input power: 5 mW * Sensitivity: 95 ± 3 dB Net weight: 20 g Impedance: 32 Ω Length: 120 cm ± 5 Frequency range: 20Hz-20kHz Connector: USB Type C Package Contents: 1 x Earphone 2 x Silicone Earplugs 1 x InstruBook 1 x microphone clip, 1 x organiser and hook