Specificationsﾣﾺ Soft and removable design, strap is adjustable. Your ultimate comfortable choice for wireless music and call when training. Waterproof testing, immersion in water beyond 1 meter, take out immediately. There no harmful effect that water splashing from any direction. So go ahead, move, sweat and rock hard, running in the rain.   Type: Bluetooth Earphone Version: Bluetooth 4.1 Talk Time: 6 Hours Standby Time: 150 Hours Charging Time: 2 Hours Transmitting Distance: 10m Power Supply: Built-in Lithium Battery Multipoint: Supports 2 Phones Connection Bluetooth Profiles: HFP /HSP/A2DP/AVRCP Audio Line-in: Stream Music by Audio Line-in Cable Even if it is Out of Power Feature: Stereo, Music Earphone, Bluetooth, Wireless, Lightweight, NFC for Quick Connection Function: Call Dialing, Remote Answer/End/Reject/Switch, Telephone Redial, Mute, Volume Control, English Switch, Smart One for Two, Music Pause/Play, Up and down the song Compatible with: for Apple Mac Pro, Apple iPad, iPod Series, Samsung Galaxy Tab, Kyros Tab, Nook Tablet, Playbook, Asus, Google, Coby, Microsoft, TOSHIBA, Pansonic, SONY, VIZIO ASUS and All brand Tablet, MID, ALL Android Tablet and all other Tablet which have Bluetooth Function. Dimension: 33.07mm x 24.17mm x 31.15mm/13.02" x 9.52" x 12.26" (Approx.)   Notes: It can not be immersioned in water beyond 1 meter. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.