Bang & Olufsen H4 2nd Gen Wireless Headphones
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| Design: | Full size |
| Description: | Design: full-size, device type: wireless headphones, design features: microphone, plug connector: mini jack 3.5 mm, acoustic design type: closed |
| Plug connector: | mini jack 3.5 mm |
| Battery capacity: | 600 mAh |
| Impedance: | 20 ohm |
| Sensitivity: | 91 dB |
| Included: | Adapter 3.5 mm |
| Design features: | Microphone |
| Device type: | Wireless headphones |
| Mount type: | Headband |
| Maximum playback frequency: | 20000 Hz |
| Minimum repeatable frequency: | 20 Hz |
| Type of acoustic design: | Closed |
| Wireless connection type: | Bluetooth |