1. Length of conventional SY-2401 telephone rod: 45cm

2. Length of lengthened SY-2401XL telephone rod: 60cm

3. Diameter of chassis: 13cm (appearance patent)

4. Weight of chassis: 0.5KG

5. Material for chassis: zinc-base alloy

6. Plug: appearance patent and structural patent

7. Transduction mode: backing capacitance

8. Range of frequency response: (80-13000) Hz

9. Sensitivity: -40±3dB 1KHz/94dB/Pa 25cm test

10.Type of direction:

11.Direction level: the difference in between 0°and 135°exceeds18dB(at 1KHz)

12.Output quantity: 25mV/Pa

13.Output impedance: 200Ω±20%

14.Output mode: balance type

15.Ideal picking-up range: (10-60) cm

16.Mode of power supply: dual power supply DC.3V or 48V phantom power supply

17.Current consumption: DC 3V 15mA two AA1.5V alkaline batteries, continuous working time ≥200 hours

18.Typical direction axial drawing and frequency response curve drawing Hypercardioid type sensitivity