Wireless earphones are divided into three parts.The first part is the sound source,the second part is the receiver, the third part is the headset part,the function of this part is mainly used to convert the signal sent by the mobile phone or receiver into sound and then transmitted to the ears of people. Wireless earphones and wired earphones compared,the difference in sound quality is not big. Wireless is more convenient,mainly in the middle of the line is replaced by radio waves. Compared with wired earphones, wireless earphones have these advantages, abandon the trouble of wired,do the real wireless structure, freedom of movement.A variety of ways to use, a variety of functions, sound quality, noise reduction, call has been greatly improved.It is equipped with a portable case with both charging and storage functions. It is very convenient to charge the dead earphones automatically by putting them into the case.
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Project Name: Liquid Crystal Display and Projector Purchasing Purchasing Project Target No.: HBTD-07001
Purchaser Name: Shijiazhuang No. 1 Middle School Purchaser Address: No. 3, Ping'an North Street, Shijiazhuang City
Purchasing Agency Full Name: Hebei TEDA Tendering Agency Co., Ltd. Purchasing Agency Address: No. 52, Xinshi North Road, Shijiazhuang City, Procurement Agency Contact Information
Procurement use: Teaching procurement quantity: one standard section: 90 sets of liquid crystal display; two standard sections: 19 projectors.
Project implementation location: Shijiazhuang No. 1 Middle School Delivery Time: 20 days Brief technical requirements / nature of procurement items: one standard segment: 17 inches, response time ≤ 8ms; resolution 1280 * 1024; two standard segments: DLP technology, brightness ≥3000ANSI, resolution 1024*768; 3LCD, brightness ≥3500ANSI, resolution 1024*768
Eligibility requirements for bidders: Qualified as an independent legal person, in accordance with the conditions stipulated by the “People's Republic of China Government Procurement Lawâ€, the suppliers shall participate in the government procurement activities, and may participate in the bidding of the bidding project; the original business license and copy of the legal person shall be carried at the time of registration. Information on units and units
Procurement Documents Release Date: January 19, 2007 Procurement Documents Release Location: No. 52, Xinshi North Road, Shijiazhuang City Procurement Documents Offer: Direct Purchase Procurement Documents Price: Each bid: 300 RMB Bidding Deadline: 2007 Separated time at 9:00 on February 9th: 9:00, February 9, 2007, bidding, bid evaluation location: Hebei TEDA Tendering Agency Co., Ltd. (No. 52, Xinshi North Road, Shijiazhuang City)
Bid evaluation methods and standards: cost-effective method
Project Contact: Zhang Yanjun Contact Fax Phone 
The latest wireless headset has a professional learning scheme,can learn the functions of various home appliances remote control (TV, VCR, DVB, DVD, etc.),can also be used as a digital SET-top box remote control. Wirelessly listen to most electrical appliances with audio output. Using wireless earphones, you can enjoy exciting programs freely when the TV is silent.Place THE TRANSMITTER NEAR THE elderly, infants, patients and other people in need of care. Use the receiver to hear the voice of the person being cared for, and care is convenient and easy. Adopt THE ORIGINAL IMPORTED TRANSMITTING TUBE AND CORE technology, HIGH sensitivity ANTI-interference, strong signal, outstanding effect, effective range (less than) 30 meters, can be received by the wall.
