Baudio Outdoor Sport Watch Bluetooth Speaker with TF card, Hands free car kit for Iphone, Ipad, Samsung, HTC, Nokia or other mobile phones and bicycle riding sport (Black) Outdoor design Sport Wrist Wear Bluetooth Speaker Hands free phone call while you riding bicycle Support TF / MICRO SD CARD READER, MUSIC PLAYING Silicone Watchband, EASY WRIST WEAR 4 HOURS PLAYING, STANDBY TIME ABOUT 20 HOURS