20 - 20000 Hz, 9.0mm, Bluetooth 3.0 Class2, 15g
JVC HA-F250BT-B, Wireless, 20 - 20000 Hz, Sports, 0.529 oz (15 g), Headset, Black
JVC HA-F250BT-B. Product type: Headset. Connectivity technology: Wireless, Bluetooth. Recommended usage: Sports. Headphone frequency: 20 - 20000 Hz. Weight: 0.529 oz (15 g). Product color: Black