UP to 24 hrs Hodling Time Bluetooth In-ear Headphone Earphone for Smartphone Tablet Pad Gold In-ear type with comfortable earplug, Dimensions: 60x22x16.7mm Bluetooth version: 4.0 , Enjoy stereo music wirelessly from Bluetooth A2DP devices. Easy controls for Answer/ End/ Reject calls, Volume and Playback Control, Redial last call. Suitable for all Bluetooth enabled device, Samsung, Motorola, Nokia, HTC, Sony mobile phones, tablet PC. Talking Time: About 24 hours