Lenovo 110 in-ear headphones with microphone, GXD1J77354, Grey

Certification: CB, FCC,ICES, CE, RCM, VCCI, BSMI KCC, EAC | Warnings: Do not disassemble or modify the product yourself. | Warnings: Read the user manual before use. | Warnings: The product contains batteries which must be disposed of correctly. | USB connector: USB Type-A | Package weight: 308 g | Operating temperature (T-T): -5 - 40 °C | Product type: Headset | Impedance: 32 Ω | Headphone sensitivity: 110 dB | Cable colour: Grey | USB connectivity: Yes | Headphone frequency: 100 - 20000 Hz | Recommended usage: Office/Call center | Colour name: Cloud Grey | Product colour: Grey | Connectivity technology: Wired | Weight: 137 g | Maximum input power: 5 mW | Microphone type: Boom | Headset type: Binaural | Wearing style: Head-band | Cable length: 1.8 m