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LENOVO THINKPAD X1 HEADPHONE 4XD0U47635 ACTIVE NOISE CANCELLATION Bluetooth 5.0; USB digital audio Capacity 800 mAh Color Black and Iron Grey Connection Type Bluetooth 5.0; USB digital audio Cable Length/Type 1.3 m Weight 214 g Audio Out NA Warranty Type CRU / Service at authorised repair centres Controls Power on/off; Multi-function button; Microphone mute/unmute; Volume up/down; ANC level 1 / level 2 / off Distortion < 5% Driver 40 mm neodymium drivers Frequency Range 20 Hz – 20 KHz Impedance 32 Ohm Power Requirement Battery charger: < 600 mA; USB audio power consumption: Max 5 V / 50 mA RMS Power NA Sensitivity > 111 dBm +/- 3 dBm Audio Input Bluetooth 5.0; USB digital audio Brand ThinkPad Packed Weight 785 g Other Electrical Specifications NA Other Operating Environment NA Other Physical Specifications NA Agency Approvals TUV/CB; CE/RED; CEC; DOE; Nrcan IC; ETA; SDPPI; SIRIM; NTC; IMDA; FCC; JRF; ICASA; NCC; KCC; TRA; SRRC Package Type Retail Package Packed Dimensions (L x D x H) 232 mm*210 mm*70 mm Warranty Period 1 Year Maximum Operating Temperature 40 ℃ Minimum Operating Temperature 0 ℃ Maximum Relative Humidity (%) 95% Minimum Relative Humidity (%) 20% Battery Charging Time 3 hours Included Accessory Compact carrying case; USB A to USB-C cable Microphone 4 x analogue microphones: Omni-directional; Sensitivity: -36 dB; SNR: 60 dB 2 x digital microphones: Omni-directional; Sensitivity: -26 dB; SNR: 59 dB Play Time 14 hours Shipment Group Headphones; Compact carrying case; USB A to USB-C cable; Quick Start Quide; Common poster Subwoofer NA Wireless Operating Distance 10 m Supported Operating Systems OS Independent Buttons & Functions 1. Multi-function Answer / Hang-up + Play/Pause/Rewind/Forward 2. Power on / off + Bluetooth® 3. Bluetooth Status Indication LED 4. USB-C Port 5. Battery LED indicator 6. Volume + / – 7. ANC – Levels 1 / 2 + off 8. Microphone mute Lose yourself in rich, crystal-clear audio Thanks to active noise-canceling (ANC) technology that intelligently mirrors and mutes noises and distractions around you, you can totally immerse yourself in sound. What’s more, with less than three hours of charging, your ThinkPad X1 ANC Headphones will run all day and long into the night. Say goodbye to having to repeating yourself Making yourself heard on any call can be tricky, especially in a busy office. But when you’re equipped with six boomless mics and environmental noise cancellation (ENC) technology, everyone will hear your every word. Adjustable on-the-fly, ThinkPad X1 ANC Headphones will save you from repeating yourself, over and over again. Because you’re worth it Weighing just 214g, ThinkPad X1 ANC Headphones are comfortable and easy to use. Designed with true fold-flat engineering, they can fit anywhere. And with silicone leather, premium plastic, and an elegant metal finish, they convey a sense of luxury everywhere you go.