CHARACTERISTICS In-ear headset with microphone. Control calls and play / pause music on smartphones. Made of lightweight, durable aluminum. Tangle-free cable for greater comfort. Elegant and attractive design. Excellent sound quality. RESPONSE 20-20,000 Hz IMPEDANCE 16 Ω SENSITIVITY 88 dB (dB / mW) ± 3 dB SPEAKERS 10 mm CABLE 1.2 m tangle-free CONNECTORS 3.5 mm jack 4 contacts COLOR Black ACCESSORIES 3 pairs of various sized silicone earpads