TurboSky ST-40 Wireless Headphones
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| Design: | Invoices |
| Description: | Design: on-ear, device type: wireless headphones, design features: microphone, foldable design, acoustic design type: closed, functions: FM radio, volume control, operating time: |
| Functions: | FM radio, volume control |
| Working hours: | 5 h |
| Battery capacity: | 150 mAh |
| Standby time: | 120 h |
| Impedance: | 32 ohm |
| Sensitivity: | 108 dB |
| Design features: | Microphone, foldable |
| Charging time: | 2 h |
| Device type: | Wireless headphones |
| Mount type: | Headband |
| Maximum playback frequency: | 22000 Hz |
| Minimum repeatable frequency: | 12 Hz |
| Membrane diameter: | 40 mm |
| Type of acoustic design: | Closed |
| Wireless connection type: | Bluetooth |