1. GN Netcom A/S Lautrupbjerg 7 2750 Ballerup Denmark www.jabra.com Jabra PRO™ 9400 series Technical specifications CC&O Marketing June 2009

2. TRANSMIT Microphone:- 2 microphone Noise Blackout™ Frequency range:- 150 Hz – 6,800 Hz Sensitivity:- 44 ± 2dB V/Pa Distortion:- <1% THD @ 1Pa Current consumption: - ≤500μA Operating voltage: - 1.4V-5.0V (DC) Output Impedance: - Max. 2.2KΩ Jabra PRO™ 9470 Microphone details TypeOmni-directional Electret Condenser Microphone Dimensions2pcs Ø 3mm x 1.5mm DirectivityDual microphone adaptive directional microphone

3. Jabra PRO™ 9470 RECEIVE Speaker: - Dynamic receiver Input impedance: - 32 Ω +/- 15% at 1kHz Frequency response: - 150 – 6,800 Hz Sensitivity: - 93dB +/-3dB/60mV At 1kHz Maximum output: - 118 dBSPL(A) Speaker details TypeMicro dynamic Mylar DimensionØ 28mm x 4.5mm

4. GENERAL Operating temperature range: 10˚C to +55˚C Battery charging temperature: 0˚C to +40˚ Operating humidity: Up to 98% humidity with no loss of function Storage temperature: +0°C -> +60°C (non condensing) Directivity 9470: Dual microphone adaptive directional microphone Directivity 9460: Noise-canceling microphone Connectivity 9470: DECT and DECT 6.0 using CAT-iq and Bluetooth ® 2.1 Jabra PRO™ 9400 series Weight Jabra PRO 9470: 28g Jabra PRO 9460: 30g

5. QUALITY STANDARDS Headband/neckband rotation wear test:5.000 (Rotation angle = 90 degrees) Headband housing ratchet function test: 15.000 Boom arm flexing test: 10.000 (Flex boom arm only. Bending radius=50 mm) Headset - base insertion test: 20.000 Headset multifunctional button test: 50.000 (Button activation force = 3 N) Jabra PRO™ 9400 series WEIGHT AND DIMENSIONS (ALL 3 MODELS) Weight of unit box (incl. content):758 g Unit box dimension:88x189x233.5mm Type Weight of master box (16 units):13,2kg Dimension Master box dimension:W400xL490xH392