Check the listing for details. SONOFF Zigbee 3.0 USB Dongle Plus Smart Wireless USB Adapter + 20dBm output gain. Color: Black, Condition: New. Listed at 20.89 USD. We accept payment via Paypal only. Please settle the payment via PayPal within 5 days upon auction ended. You can left us a message about your special request. Packages will be sent out with 24-48 hours (except holidays). Packages are only shipped via Paypal Address. We will not bear for duties or taxes. We offer free shipment via Standard method.we also offer express transportation,while you need to pay for the extra postage. If you have not received your items within 30 days,please contact us trough Ebay message,please contact us before you contact ebay. We accept returning with 30-days,please add your ebay ID into the package. You can receive the replacement or money back. Working time:Beijing Time From 9:00am to 6:00pm,from Monday to Friday. (we don’t work on weekends).we will get back to soon on working time. We will appreciate for your positive feedbacks,if you have any questions,please Contact us firstly we will try our best to help you. Emails will be replied with 12 hours,replies will be delayed in holidays. All rights reserved.