TYPE: Sealed Dynamic Bluetooth Wireless (On-Ear) Unit: 32 mm Premium dynamic driver / Frequency response: 20 Hz to 20 kHz /
Bluetooth version: 4.0 / Communication distance maximum: about 15 m (when there is no obstacle)
Continuous use time (lithium ion rechargeable battery): Charging about 2 hours / playback about 12 hours / Charging / playing time varies depending on the environment.
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