Come and see our amazing products. Adopt the most advanced Bluetooth 5. 0 technology. Provides in-call stereo sound. Also own fast and stable transmission without tangling. 400mAh charging docking will auto charge earphones when put into it, and power off after charging full. Single ear, dual ear use can share the music together, deep base mode is also available. Noice cancelling technology bring you 360 panoramic bass spund and HD calling. Big capacity charging box can charge anytime and anywhere. Your logo imprint is also available. Pls confirm further with us if any query about packing info, inventory status and time schedule.