12 months warranty Model:H390 ~ Digital stereo Noise isolation microphone Remote control device USB-A plug and play Padded headband and earmuffs ~ Product Size: 171 x 151 x 68 mm Product Weight: 0.197 g Cable length: 1.9 m ~ Microphone type: two-way Input impedance: 32 Ohm Headphone sensitivity: 94 dBV/Pa +/- 3 dB Microphone sensitivity: -17 dBV/Pa +/- 4 dB Headset microphone frequency response: 20 Hz - 20 kHz Microphone frequency response: 100 Hz - 10 KHz 　 Accessories Included: H390 USB Computer Headset ｘ１ ～ Logitech Original - Parallel import - Return and refund are not accept. - Free shipping to HK/Macau when spending over $500 onwards - China area shipping fee $130 + Local SF Express + Local SF Express - Two business day shipping. Sent via SF express - Exchange of defective units purchased in 7 days - 12 months warranty ~ *Photo for reference only