Business Handsfree Stereo Earphone Wireless Bluetooth Single Earbud (In Ear)Headset for iPhone 5 5S 6--Blue Type: Bluetooth Stereo Headset Ear Coupling: Earbud (In Ear) Talk Time: Up to 6 hours Standby Time: Up to 120 Hours Charge Time: 2 Hours (By 5 V Power Adapter) Bluetooth Version: 2.1 Dimensions: 50mm x 20mm x12mm Weight: 10g