The Sony MDR-ZX770BT are over-ear headband headphones that offer noise cancellation. The frequency range covered by the model is 20 Hz-20000 Hz. With 2.2k ohm impedance level and 98 dB/mW sensitivity, this pair of black headphones produces authentic sound. This wireless model offers Bluetooth and NFC connectivity. It has a built-in lithium-ion rechargeable battery that lasts up to 17 hours on a single charge.
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