1. Speaker: 16 mm dynamic type.
2. Impedance: 32 Ohms +/- 10%.
3. Sensitivity: 105 +/- 3 dB.
4. Mylar thickness: 6um (option).
5. Microphone:
(1) Sensitivity: 58 +/- 3 dB.
(2) Card length: 1.2m (4 feet).
1. Connector: 3.5 mm. 2. Cord fastener: include. 3. Voice switch: (option). 4. Neck strap: (option). 5. Packing: poly bag or blister.