Air Quality Control

Seyoung Information & Telecommunication Co., Ltd.

Usable Frequency: 2.403~2.481 GHz / 863~865MHz / 900~928MHzNumber of Channels: 40 / 8 / 4Power Source: Lithium polymer Battery 3.7V 1,200mABattery Time: Max. 10hrRecharge Time: 3hrProtective Design: IP54Weight: 70gDimension: 38 x 78 x 19 mmAmbient Operating-Temperature Range: -20℃ ~ 60℃

Full Duplex Radio Communication System(900MHz)

 Usable frequency band : 2.403~2.481GHzEffective service distance (L.O.S) : Max. 300m4-channelled operation.2-way simultaneous audio/voice communication.Volume up/down button and multi-function button.Power source : Lithium polymer battery 3.7V 800mABattery time : Max. 11hrCharging time: 2 hours.Weight : 70gDimension :65 x 32 x 22mm

Two way radio

Shenzhen Beien Huiye Tele-Communication Equipment Co., Ltd.

This revolutionary headset amplifier realizes the connection between the telephone and the headset, allowing you to use it with any kind of telephone. When receiving or dialing a call, the telephone handle should be lifted and you can make a switch between the headset and the handle by using the amplifier. The&nbsp;line conditioning function ensures that&nbsp;the headset line&nbsp;matches any telephones.

 
  Clear sound quality. 
  Sidetone reduction and echo prevention functions. 
  Sound volume of both the headset and the microphone can be amplified or reduced. 
  Light indicator is on when the headset is in use. 
  Mute function. 
  Comes with a practical headset holder. 
  Does not require&nbsp;any change&nbsp;of the current telephone system or setting. 
  An outside power supply is needed. 
 

Headset Amplifier

WING CHEONG ELECTRICAL CO LTD

  Amplifier Specifications:  a.. Adaptability   new circuitry compatible with Single=line, Multi-line and PABX Telephone System  b.. Sound Quliaty   new circuitry to remove radiation emission which causes noise  c.. Connect to youe telephone base unit and computer sound card by one quick switch  Choice to use telephone headset or hadset by one quick switch  e.. 6-slot Configuration Switch for all telephones  f.. Auto Battery-Power Saving function  g.. Quick muting button  h.. Switch between telephony and multimedia applications with one switch  i.. AC/DC Power option (AA*2)  j.. FCC, UL, CE Approval granted  Headset Specifications:  a.. Monaural Telephone Headset  b.. Dynamic output with 40mm Mylar Speaker, impedance: 150-ohm  c.. 270-degree rotatable and bendable microphone boom arm  d.. Leatherette ear cushion  e.. Quick disconnecting cable with RJ-11modular  Accessories: a.. Telephone Patch Cable; b.. Computer Patch Cable; c.. Screw Driver Pin  

Telephone Amplifier

The advanced USB headset adaptor is designed to support telephone&nbsp;headset products in call centers, delivering high-quality digital communication with effortless ease. It is compatible with Windows and Unix operation systems and can be recognized on various automotive systems. With the classic appearance and simple operation interface, this sophisticated headset adaptor is a perfect combination of function and style. 

 
  Volume control and mute functions with indication lights. 
  Easy-to-use and durable. 
  Perfect for online phone calls. 
  No need to install a driver. 
  Hot plug, plug and use. 
 

USB Headset Adaptor

Burnside Technology Ltd.

New DECT Headset with PC/Telephone switching. Single ear. Noise cancelling microphone. 300 feet open space range. Easy set up. Overhead or over-ear headband. 8-9 hours talk time (stand by ~ 50 hours). Magnetic sure dock system for charging. Quick recharge time (2-3 hours). Changeable headset speaker colour - black or wine. Land line and VoIP (USB) - MS Lync compatible. Electronic Hook Switch (EHS) or Lifter options. In-use busy light indicator. Mute the caller button on headset and base. Volume control on headset. Automatic telephone compatibility connection.

X400 (DECT) with EHS

GT Telecom Co Ltd

This compact Bluetooth headset features a slim and streamlined design. It allows you to answer telephone calls with both hands free. The high-performance headset delivers sound with crisp details.

 
  Multi-point communication. 
  Standby time: 6 months (ultra power save mode). 
  Slide on/off standby system to save battery consumption. 
  Call lock feature to prevent unintentional call. 
  Smart connection to receive an incoming call easily. 
  Talking time: 7 hours. 
 

Bluetooth Headset

APN Merchandising Limited

Featured here is a touch screen fixed PSTN and VoIP smart desktop telephone with Android operating system. It can be perfect integrated with mobile phones and offers an easy dialing experience. This smart desktop telephone has a large screen for making video calls and is excellent for conferencing use. 	 Touch screen fixed PSTN and VoIP smart desktop telephone with Android operating system. 	 USB connection for charging, also can connect with computers, support OTG. 	 Support WI-FI, WI-FI reset, WLAN connector. 	 5V USB charging output. 	 Ringer volume control, reset function. 	 Support headset calls and dial and hands-free calls and dial. 	 Hot spot sharing. 	 Perfect integration with mobile phones. 	 Easy dialing experience. 	 Unlimited intelligent application for making calls easily. 	 Directly call via contacts. 	 Contact information inquiry. 	 Easily set the black and white list, automatically identify and mark strange calls and refuse crank calls. 	 One key to import contacts. 	 Show caller ID. 	 Telephone message, call notes, telephone recording. 	 Historical call record. 	 Electronic photo album. 	 Video call. 	 Call recording. 	 Modern and functional design. 	 Great for video conferencing use. 	 Suitable for home and offices.  

Video Phone

Picotronics Ind Ltd

 	 Headset port with volume control 	 Menu prompt language: English, Fran&ccedil;ois, Espanola, Portuguese, Polish, Italian, Svenska, Deutsch, Nederlands, Turkey. 	 All telephone operations rely on telephone line power only 	 16 digits number and 16 characters display. 	 Up to 160 CID records, each of which includes 8/12/16 digits number and 8/12/16 characters CID name. 	 Type I caller ID with FSK/DTMF dual system 	 Up to 93 phone book memories with up to 8/12/16 digits number and 8/12/16 characters name, New/REP CID indicator. 	 Check, edit, delete and dial the number from phone book. 	 Calendar, real-time clock and date display 	 7 steps LCD contrast adjustable/LCD backlight in operation model 	 8 one-touch memories with 16 digits 	 Flash timing programmable: 100ms, 300ms, 600ms and 1000ms. Recall mode (TBR/ETH) selected by switch 	 5 digits local code and long prefix, and 3 digits EXT. prefix setup. 	 HOLD with music function for handset, headset and hands-free. 	 Push to Mute function for handset only. 	 Hands-free and headset function with speaker volume control 	 Tone/pulse dialing programmable 	 32 digits pre-dialing with edit function and Last number redial and auto timer function 	 Message waiting function enabled and disabled selectable by switch 	 16 ring tones selectable and don&rsquo;t disturb setting. 	 Message waiting, hands-free/headset, ringer LED indicating  

Headset Telephone with CID Feature

 	 Simple telephone facility with headset operation 	 Loop disconnect or DTMF signaling (selectable) 	 32 digits automatic storage of last number dialed 	 20 direct memory locations of 24 digits capacity 	 Ringer volume control 	 Ringer pitch control 	 Earth loop or timed break recall (selectable) 	 Operation in absence of proceed indication 	 Wall mountable 	 Suitable for PABX&rsquo;s providing secondary proceed indication 	 Push-to-mute function or optional push-to-speak 	 Message waiting (6 wire line cord required for 6 wire systems not supplied) 	 Memory protection switch 	 Available colors: black or white  

Business Headset Telephone

Shenzhen Taifeng Network Equipment Co Ltd

Featured here is a 2.4G wireless phone set with versatile functions. It can be auto switched between PSTN and wireless network. The complete dual-work mode allows&nbsp;two handsets to communicate with each other without the base unit.
 
  Supports GSM 900MHz, 1,800MHz network, PSTN network. 
  Elegant design. 
 

2.4G Wireless Phone Set

Kwanda Ind'l Co Ltd

ITEM PERFORMANCE Title ST/DS/EY/PY/MJ Rating 0.3A 30V DC ContactResistance(mohms) 100mΩMAX Insulation Resistanc(Mohms) 100MΩ MIN for 500V DC 1Min Dielectric Strength(V) AC 500V 1Min LifeTest 5,000 Cycles  

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