Olatec L12s Yellow Bluetooth Smart Bracelet Wristwatch Oled Digital Watch Mp3 for IOS Iphone Samsung HTC Android Smart Phones Synchronize with iPhone Android Windows Phones in Caller ID, Directory, SMS, Music, Date & Time Bluetooth Standby for 168 hours is a wonderful gift to your families and friends The bracelet is charged through standard Micro USB input port Easy to wear and use, Fashion and casual, best partner of cell phone (Android version and iPhone version), anti-lost alert. Synchronize through Bluetooth, answer call by pressing a button