Brand new still in box noise canceling Headphones no flaws

Headphones Call Center Earphone with Noise Cancelling Microphone Adjustable Headband Volume Control with Charging Dock. Multi-purpose Headphones: Fits for making office business conference calls, call center phone calls, online courses, language learning, playing games, listening to music, etc. Noise Canceling Microphone: External 330° rotary microphone with CVC6.0 noise reduction technology reduces environmental sound, enhances human voice, ideal for clear conversation. Ergonomic Design: Lightweight design, adjustable headband length, soft ear pad provide maximum wearing comfort, suitable for different head size wearing. BT5.0 Wireless Connection: BT 5.0 (CSR8615 chipset) ensures low power consumption, stable connection, and fast transmission speed. Compatible with almost all BT-enabled audio devices. Long Battery Life: Built-in rechargeable lithium battery, 2 hours charging, can provide 15 hours of music playing time, 17 hours of talk time, and 200 hours of standby time.