Excellent sound quality.
Snug fit transparent earbud.
M plug: 2.5mm (diameter).
Fine transparent acoustic tube with finger PTT switch.
Special design with a clip and convenient to carry.
Compatible with most of interphones and the ones have the same interface.
Weight: 34.24 g
Size: 1092 cm
1 × 5428 Tube Throat Vibration Earphone for Interphones