ULDUM Bluetooth Earbuds Bluetooth V4.1 Automatically Pair Selfie Bass Stereo Noise Cancelling HiFi Sweatproof IN-Ear Bluetooth Earphones for Cell Phones MP3 Tablets and All Bluetooth Players - Ruby Bluetooth Earbuds Automatically Pair After Opening Earphone Afterwards Open Enable Bluetooth Device and Find "ULDUM L06" and Click It,Bluetooth Pair Is OK.Selfie Function:In Camera mode of Bluetooth Enable Device,Find"selfie"Mode and Click it,Afterwards press the Button"snapshot",Selfie is OK. Bluetooth Headphones Super Bass Hi-Fidelity Stereo Earbuds with Built-in Stereo Microphone, Noise Cancelling, Sweatproof.8 Hours of Enjoying Music Time,Guarantee that Bluetooth Earbuds Are within Earshot for Sports during Camping,Hiking or Other Outdoor Activities Bluetooth Earphones EDR V4.1 Connects up to 33 Feet(Range based on without any obstacle),Working Time: Over 8 hours,Support to connect two devices onec at same time,In-line Control Valume Function, Standby Time: 10 days USB Charging for 2 Hours. Blustooth Stereo Headsets Were Authorized by CE,FCC,ROHS and UL. Compatible with iPhone iPod iPad HTC XIAOMI SAMSUNG Android Smartphones MP3/MP4 Bluetooth Players Tablets and All Bluetooth Music Devices