Velkomin í Shenzhen Changxinghuitong Technology Co., Ltd!
+86 19129355807
Þráður sími
Þráður sími
Þráður sími
Þráður sími

Þráður sími

The wire telephone are a microphone (transmitter) to speak into and an earphone (receiver) which reproduces the voice in a distant location. In addition, most telephones contain a ringer to announce an incoming telephone call, and a dial or keypad to enter a telephone number when initiating a call to another telephone. The receiver and transmitter are usually built into a handset which is held up to the ear and mouth during conversation. The dial may be located either on the handset or on a base unit to which the handset is connected. The transmitter converts the sound waves to electrical signals which are sent through a telephone network to the receiving telephone, which converts the signals into audible sound in the receiver or sometimes a loudspeaker. Telephones are duplex devices, meaning they permit transmission in both directions simultaneously.

fáðu tilboð
Model: CX-T-B
Umhverfishiti: -10℃-40℃
Loftþrýstingur: 86-106 KPa
Hlutfallslegur raki: 10%-95%
Umhverfishljóð: ≤60dB(A)
SLR: 5km≤15dB
RLR: 5km≤2dB
STMR: 5km≤12dB

This product: Wire Telephone

nýjustu fréttir
Aluminium Alloy Heavy Duty Weatherproof Telephone: The Perfect Industrial Rugged Telephone
When it comes to communication in harsh and demanding environments, the Aluminium Alloy Heavy Duty Weatherproof Telephone stands out as...

2023-9-30 LESTU MEIRA

Öflugur IP66 vatnsheldur sími fyrir áreiðanleg hliðræn samskipti
Þegar kemur að áreiðanlegum samskiptum er sterkur og traustur sími ómissandi. Þess vegna er öflugur IP66 vatnsheldur...

2023-6-11 LESTU MEIRA

Talking Through a Glass Intercom: Clear Communication in Isolated Situations
In many situations, people may find themselves isolated or separated from others, either physically or metaphorically. In these situations, communication...

2023-6-7 LESTU MEIRA

Vaktsími SOS iðnaðarsími Tól til að halda sambandi í neyðartilvikum
Duty Phone SOS er iðnaðarsími til neyðarnotkunar. Það er tilvalið til notkunar í verksmiðjum, vöruhúsum og öðrum...

2022-10-8 LESTU MEIRA

High quality Emergency Call Box: Ensuring Safety and Prompt Assistance in Times of Need
In today's fast-paced world, the importance of safety cannot be overstated. Whether it's at home, on the road, or in...

2023-8-2 LESTU MEIRA

High quality Emergency Phone Tower: A Life-saving Solution in Critical Situations
In today's fast-paced world, where technology has become an integral part of our lives, ensuring the safety and security of...

2023-8-4 LESTU MEIRA

IP tunnel emergency Telephone to protect your every moment
In the rapid development of transportation construction, the tunnel is a key node connecting the two places, and its safety...

2024-2-28 LESTU MEIRA

Phone Hood: A Guide to Telephonic Etiquette and Communication Skills
In today's digital age, phone calls may seem outdated to some, but they still play a crucial role in effective...

2023-7-1 LESTU MEIRA

Outdoor Weatherproof Telephones for All-Weather Communication
In today's fast-paced world, effective communication is crucial in every aspect of our lives. Whether it's for emergency situations, business...

2023-7-26 LESTU MEIRA

China Waterproof Telephone: The Ultimate Outdoor Rugged Communication Solution
Introduction:   In today's fast-paced world, staying connected is more important than ever before. Whether it's for work or personal...

2023-8-7 LESTU MEIRA