If you're heading back to school and need a perfect pair of wireless bluetooth headphones with a long battery life but still fairly affordable, these Sony WH-XB700 wireless bluetooth headphones are going for just $78, which is a whole $51.99 discount. Awesome Sony Headphones Deal, WH-XB700 For 40% Off Sony Wireless Bluetooth Headphones WH-XB700 - Get it on Amazon for $78 The Sony WH-XB700 wireless bluetooth headphones are light, comfortable, and last for about 30 hours of listening time, plus they're enhanced with extra bass for a step up from other wireless headphones.