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Osio NT-8790 Walkie Talkie earpiece with PTT and incisible acoustic spiral tube

Transparent acoustic tube style surveillance earphone received superior sound even in noisy environment, and it’s also discreet and portable
Changeable acoustic tube assembly for hygiene and multiple users
Clip can secure to user’s lapel to meet their need
All units feature heavy grade industrial jacketed cables and excellent strain relief for maximum life in the field
Surveillance PTT
Internal microphone element with excellent voice pick up
360 degree revolving back clip can turned by different segments to secure to the user's lapel or collar
Metal clip enhances the durability
Reinforced strain relief gives unit maximum durability
Can be easily concealed under a sport coat, jacket or other
Specification:
speaker diameter :16mm
Resistance: 90Ohm±15% at 1000Hz
Sound Pressure Level :90dB+/-3dB at 1000Hz
Rated Power: 50mW
Max Power :200mW
Microphone Type: Electret microphone
Sensitivity :-40dB+/-3dB at 1000Hz
Resistance :2.2KOhm
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Osio NT-8890 Waterproof Walkie Talkie earpiece with plug to connect a second earpiece, PTT and invisible acoustic spiral tube

Transparent acoustic tube style surveillance earphone received superior sound even in noisy environment, and it’s also discreet and portable
Changeable acoustic tube assembly for hygiene and multiple users
Clip can secure to user’s lapel to meet their need
All units feature heavy grade industrial jacketed cables and excellent strain relief for maximum life in the field
Surveillance PTT
Internal microphone element with excellent voice pick up
360 degree revolving back clip can turned by different segments to secure to the user's lapel or collar
Metal clip enhances the durability
Reinforced strain relief gives unit maximum durability
Can be easily concealed under a sport coat, jacket or other
Specification:
speaker diameter :16mm
Resistance: 90Ohm±15% at 1000Hz
Sound Pressure Level :90dB+/-3dB at 1000Hz
Rated Power: 50mW
Max Power :200mW
Microphone Type: Electret microphone
Sensitivity :-40dB+/-3dB at 1000Hz
Resistance :2.2KOhm