Model: UB1800 wireless microphone system

Contact: Mr. Davis Lu-CMO (Chief Marketing Officer)TEL: 0086-756-3292387, FAX: 0086-756-3292370Email: 3@liwmik.comMob:  0086-189 2692 8039WeChat No.:  Lu13928091976Int'l Marketing Dept:  4@liwmik.com，5@liwmik.comNOTE: 1. FOB (Zhuhai,Shenzhen, HK) or CIF prices are available based on your specific needs.2. Colorful plastic anti-slip rings & anti-falling pads matched to handhelds (as shown by the photo) are to be sent to buyers free of charge. 3.Liwmik various colorful metal handheld-microphones are available as shown by the photo.4.The buyers who buy our K, R, U series of) microphone system products will be sent our handheld wired microphones (free of charge) by “1 pc sent for every 10 sets bought” ratio. As our stockpile of the free gifts is limited, the “Rewarding Customers” activity will end when the free gifts run out.PARAMETERS OF THE SYSTEM:Description of the product:Wireless microphone system w/ one receiver + two pairs of hang-on wireless transmitter  &  headset microphone-head (1 match 2)Matching quantity between receiver and transmitters: each receiver can match 2 transmitters (1 match 2)Range of frequency：640MHz-690MHzMethod of modulation：Broadband FMAdjustable range：50MHzQuantity of channels：200Channel spacing：250KHzFrequency stability：within±0.005%Dynamic range：100dBMax. drift of frequency：±45KHzAudio response：80Hz-18KHz(±3dB)Integrated signal-to-noise ratio：>105dBIntegrated distortion：≤0.5%Working temperature：-10 ° C - +40 ° CPARAMETERS OF THE RECEIVER：Mode of receiver：Double frequency conversion superheterodyneIF frequency：1st IF：110MHz，2nd IF 10.7MHzWireless interface：BNC/50ΩSensitivity：12 dBμV (80dBS/N)Adjustable range of sensitivity：12-32 dBμVSpurious suppression：≥75dBMax. output level：+10 dBVPower supply: 12V/1000mA , AC/DC Adapter in line with international standards:(Input:AC100-240V,50/60HzOutput:safety voltage DC12V, 1000mA.Safety certificates such as CE, UL, etc. & plugs suitable to different nations are available)PARAMETERS OF THE TRANSMITTER：Type of the transmitters：Conference microphone (desktop microphone), handheld microphone or hang-on transmitter are optional.For the latter, either lavalier or headset microphone is optional. Mode of antenna：Desktop microphone and handheld microphone with a built-in helical antenna each. Hang-on transmitter uses a 1/4 wavelength whip antenna.Output power: high power 30mW；low power 3mWSpurious suppression：-60dBPower supply：two AA batteriesUtility time: more than 10 /15 hours at 30/3mW respectively PARAMETERS OF THE SYSTEM:1. UHF (Ultra High Frequency) range and precise technique of APF (Analog Pilot Frequency) are adopted with less disturbances and more reliable transmission of signals than traditional VHF (Very High Frequency) range. 2. The DPLL (Digital Phase Lock Loop) multi-channel frequency composing technique can provide as much as 200 channels by 250KHz spacings within 50MHz frequency bandwidth facilitating several sets of the product being used at the same time to avoid easily various disturbances. 3.  AIFS (Automatic Infrared Frequency-Synchronizing) technique is adopted. Even frequencies of the transmitter and the receiver are adjusted to be untuned, just one pressing on the button will allow the transmitter to track frequency of the receiver and adjust their frequencies to be the same automatically. It is easy to use. 4. Unique high/low power switching function allows either fluent using of the product in places like mass rallies (high-power transmission) , or saving power of batteries when it is used in school classes or KTV (Karaoke Television) rooms (low-power transmission). 5. Unique "receiver’s sensitivity-adjusting function" allows its sensitivity to be adjusted according to actual needs to increase either the capacity to resist disturbance or the receivable distance. 6. Max. working distance between the transmitter and the receiver can reach 200 meter. 7. Function of ASF (Automatic Searching non-interference Frequency) points. Easy and quick. 8. The total-view LCD display screens show clearly from any angle working status of the transmitter and the receiver. 9. High quality, high density shielded cables with 6.35 interface for audio frequency allow signals to be transmitted to the preamplifier or mixer without loss. Thus higher fidelity of sound-transmission can be ensured.10. Gold-plated copper AF interfaces of receiver and the matched 6.35 AF cables can ensure perfect transmittion of audio frequency signals.11. Wide audio response frequency range of the product covers the frequency range of sound waves that can be heard by human ears. Whether it is deep bass, melodious mediant , or loud and clear treble, all voice can be perfectly transmitted and reproduced to ensure the Hi-Fi sound effect.12. Advanced CPU and exclusive designed software are used to make the whole system run accurately, efficiently and professionally.13. All the receiver panels are carefully designed, reasonably arranged and easy to operate.14. Hands of the speaker can be free while he or she is speaking when the headset microphone is used providing more flexible and practical options to users.15. Automatic "Low Battery" warnings are built-in the mini transmitters to provide convenience to users.16. Steel case of the receiver, adopting standard IU case design and spraying painted wearproof water-wave finishing, looks very nice and is strong, durable to use.17. Years of experience, professional design, quality materials and components, plus meticulous manufacturing process, create together the excellent product w/ high quality, outstanding performance and pretty appearance.