Stylish design with comfortable fit for enjoying your music on the go. This wireless Bluetooth earbuds with power bank case can help you connect with new and potential clients! it is designed to fit the shape of your ear,the earplug is safe in your ear,it is so light and natural that you hardly notice it exists. Your logo is welcome. Features Bluetooth Version: BT V5.0+EDR with function of powerbank item dimension:62*53 mm Operation Range:10-18 meters Supports: A2DP, HFP, HSP, AVRCP Frequency Response Range: 2.4 GHz Battery :50 mAh /2500 mAh Rechargeable lithium battery Charge Time (for Power Bank Box):About 3-4 hours Talk Time:4-6 hours Charge Time for earphone: About 1 hour Price Includes: Free setups Free virtual proof Free Logo PMS matching Free 1C imprint on 1 side Free Standard shipping to 1 US location Free standard packaging Gift Box