Bluetooth wireless earpiece 4mm for exam, earphone for exam
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| Weight: | 12 g |
| Design: | Intracanal |
| Product color: | Bodily |
| Description: | Design: in-ear, device type: earpiece, operating time: 4 h |
| Working hours: | 4 h |
| Talk Time: | 4 h |
| Impedance: | 16 ohm |
| Length of cable: | 0.7 m |
| Device type: | Earpiece |
| Minimum repeatable frequency: | 20 Hz |
| Membrane diameter: | 4 mm |
| Wireless connection type: | Bluetooth |