Economic Audiometer NS02

Audiometer Input: Tone,Spech-built In&Ext.Mike Output: Left,Right,Bone Frequency: Air 0.250KHz to 8KHz. Bone 0.250 KHz to 6KHz Masking: Wind Band-10db Step, 100db Max Tests: Pure Tone,Speech,Tone Decay(counter) Tone: Continuous Pure tone&Pulse voice Screen: L.C.D. with contrast control Head Phone: DR 59 TDH 39/49/Optional Bone Vibrator: B-71Radioear Power adapter: 230V AC transformer,9V output Weight: 3.5kg(with Shoulder Bag) Dimensions: 250 x 210 x 75mm Standard Accessories 1. HEADPHONES: Matched air conduction headphones of Impedance - 10 ohms, complete with headband & connecting cords with jack. 2. BONE CONDUCTION RECEIVER with headband & connecting cord with jack. 3. MAINS CORD WIRE. 4. PATIENT RESPONSE SWITCH. 5. AUDIOGRAM PAD WITH A PEN SET. 6. EXTERNAL MICROPHONE. 7. D.C. WIRE ASSY. WITH CLAMPS. 8. OPERATING MANUAL. 9. CARRYING CASE.