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. | Recommended usage: Office/Call center | Headphone frequency: 100 - 20000 Hz | Cable length: 1.8 m | Operating temperature (T-T): -5 - 40 °C | Package weight: 308 g | Product colour: Grey | Weight: 137 g | Maximum input power: 5 mW | Microphone type: Boom | Connectivity technology: Wired | Headphone sensitivity: 110 dB | Headset type: Binaural | USB connectivity: Yes | Colour name: Cloud Grey | Wearing style: Head-band | Impedance: 32 Ω | USB connector: USB Type-A | Product type: Headset | Cable colour: Grey