Description: USB headset is suitable for laptop and desktop computers with USB interface, with volume adjustment function. Microphone noise reduction processing can block most of the background noise. The straw can be adjusted freely without worrying about breaking. Thickened earmuffs, soft, comfortable and ear protection. Support USB V3.0 and USB V2.0 interface. Support for Windows XP/ for Vista/7/8/10/ for Android, etc. Specification: Product Name: USB Headset Material: PVC Color: Black Headset: Impedance: 32 Ω Sensitivity: 150dB Dia: About 30/40mm Frequency Response: 20HZ-20KHZ Cable Length: 1.5m+0.5m=2m Plug: USB Microphone:  Size(L*W): About 4x1.5mm Impedance: 2.2KΩ Sensitivity: -52dB Directivity: Single Direction Frequency Response: 50HZ-15KHZ Package Included: 1pc x USB Headset Note: Transition: 1cm=10mm=0.39inch  1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.

FEEDBACK 1. If you are satisfied with our products and services, please leave your positive feedback of 5 stars . And 5 stars for the detailed rating of your order. We will of course give your positive feedback. 2. If you don't satisfied our porducts, pls contact us before you leave negative feedback. We guarantee we will 100% slove any problem for you. SHIPPING 1. Preparing Time: we need 3-7 working days to prepare your order, Ignoring how many  days of processing remains. 2. There is no limitied Order/Value in our store. We offer free shipping worldwide for any quantity and any value 3. APO/FPO/DPO Shipping We apologize that P.O. Boxes and military addresses (APO, FPO) cannot be delivered.  shipping REFOUND & EXCHANGE We have a QA team to test your ordered products are functioning correctly before they are packed and sent to you. But you do need to confirm your dress size carefully before buying (a size measurement will be show below each items). Atten: we can’t accept the exchange or canceling after your order has been shipped. The following information is required when you reflect the problem: ----Order number ----Image/video of defective beads. If you have any question regarding return policy, please feel free to contact us! OUR GUARANTEE If you are not 100% satisfied with the quality of your purchase, you can return or exchange your items within 30 days from the delivered date. Request: 1. Items received within 30 days from the delivered date. 2. Items received unused, undamaged and in original package. 3. Return shipping fee was paid by buyer.