Sony Wireless Sports Bluetooth Headphone MDR-XB80BS New 5” full range driver for

5” full range driver for satellites and 4” bass driver for the subwoofer

Item model number :- V320

But the Sony WH-CH400 made things easy for me and I must say that I have been impressed with this device

treble and volume

Sony Wireless Sports Bluetooth Headphone MDR-XB80BS New 5” full range driver forSony Wireless Sports Bluetooth Headphone MDR XB80BS MDR XB80BS has the best matching tempo (120 to 140 beats per minute) to give you that extra bass and push needed to enhance your sports performance. It gives 7 hours long battery back up. and supports quick charging technology. Built in mic comes handy when you want to take a hands free call. The product should not be used when in motion. The range is up to 10 meters. There is a reset button