WISEQ Hero Headphone for Kids Wireless Via Bluetooth User Manual KEY FUNCTIONS LED INDICTATOR READY TO CONNECT DEVICE   LED INDICTATOR FLASHES RED & BLUE STAND-BY MODE   LED INDICTATOR IS CONSTANT BLUE PLAYING MUSIC   LED INDICTATOR FLASHES BLUE INCOMING CALL   LED INDICTATOR FLASHES RAPIDLY BLUE   LOW BATTERY  …