Introduction:

This is the first interphone sunglasses. The product is no need to apply for a license, no network restriction, without any call charges, free speaking, one click let you really put it down. Design is novel, simple, fashionable and generous, beautiful and practical, its unique design mirrors back the details of the soft pad, so more comfortable to wear.Easy to carry the characteristics of a public relations company / production company, entertainment, festive service, organization events, travel agencies, construction / renovation company, community service, outdoor sports, life and other areas of utility, by the majority of users.

Features:

1) Fine unique style sunglasses, with polarized lenses international, canblock 100% UV A, UV-B, UV-C and harmful blue light.

2) The lens can be turned on, lightweight frame material offers all-day comfort.

3) The machine can be one to one, one to many at the same time speaking

4) The effectifve communcation distance up to 500M (depening on the specific terrain case may be)

5) The use of rechargeable polymer lithium-ion battery, charging with automatic protection

6) Battery indicator, audio save power

7) Audio squelch, audio save power

8) The frequency paramerter: 409.75-410.1375MHz (the user can customize the relevant country band, the frequency can be 325MHz-385MHz or 390MHz-470MHz to choose between)

Parameters:

1) Transmit power: >55mW

2) Frequency error: <500Hz

3) Emission current: <90mA

4) Modulation Sensitivity: 20 ± 5mV

5) Modulation limiting: <2.4KHz

6) Modulation Distortion: <3%

7) Spurious emissions: <55dB

8) Receiver Sensitivity: -120dBm

9) Audio Output @ 32Ω receiver: >200mV

10) Audio distortion: <5%

11) Receive Current: <80mA

12) Shutdown current: <10uA

13) Operating voltage: 4.2V (800MAH)

14) Working time: 10 hours

15) Weight: 60g

16) Dimensions: 170mm x 160mm x 40mm

17) Operating Temperature: -20°C to + 60°C