1 Year Local seller warranty  more Frequency Respones : 20Hz-20,000Hz Driver : 13 mm dynamic driver Impedance : 32 ohm +/- 15% Sensitivity : 108 dB +/- 2dB Maximum input Power : 5 mW Net Weight : Approx: 14g Cord: 1.2m ±30mm Connector: 3.5mm jack  Product details of Nakamichi NMCE200 In-Ear Metal Earphone With Microphone (GOLD)  Nakamichi NM-CE200 In-Ear Metal Earphone With Microphone (GOLD) It's Design With Original Hi-Fi Stereo Sound From Nakamichi, Which Let People To Feel Differently When Listening To Music.       Specifications of Nakamichi NMCE200 In-Ear Metal Earphone With Microphone (GOLD) What's in the box: 1 x Nakamichi NM-CE200 In-Ear Metal Earpphone With Microphone (GOLD) 1 x User Manual General Features: SKU NA077ELAA6MB54SGAMZ-13303439 Bluetooth No Headphone Features Built-in Microphone Model NMCE200-CGD Size (L x W x H) 9cm x 3cm x 15cm Weight 0.014 Warranty period 1 Year Warranty type Local seller warranty