Place the base on a horizontal table, plug one end of the power adapter to the end Seat, and plug the power outlet the other end, power on and chassis LED turns blue. The cylinder aids placed in the seat recess, and then put the speaker vertically gently into the inner cylinder aids, after power on, You can gently remove the aid upward. Simple and fast.

First of all, make sure that the burglar alarm SIM card has no overdue bill, or master mobile phone has MMS code of the country, the MMS code should be set.

It is the mobile phone which should be used to monitor burglar alarm.

To charge, GSM card must be inserted, otherwise, charging can’t be done.

Check to see whether TF memory card is wrong, if there is no error about TF card, format TF card, then retry.

The mobile phone signal won’t be enabled until the SIM card is inserted, so you just need reboot the machine. In addition, if your mobile phone is not in the service area, there is no signal.

1st, Please change your TF card into FAT32 format2nd, After releasing the upgrade firmware http://..........com/otherbar1734686.htm and move it at the root of TF card3rd, Please ensure HD900 is turned off and then press Power & Volume+ button at the same time. HD900 will start to upgrade after 6seconds4th, Now please install "UAV Forecast" APK well,thank you!

1st, Please change your TF card into FAT32 format2nd, After releasing the upgrade firmware http://..........com/otherbar1734686.htm and move it at the root of TF card3rd, Please ensure HD900 is turned off and then press Power & Volume+ button at the same time. HD900 will start to upgrade after 6seconds4th, Now please install "Litchi Magic Leash" APK well,thank you!

1st, Please change your TF card into FAT32 format；2nd, After releasing the upgrade firmware http://..........com/otherbar1734686.htm and move it at the root of TF card；3rd, Please ensure HD900 is turned off and then press Power & Volume+ button at the same time. HD900 will start to upgrade after 6seconds. Thank you !

1st, Please change your TF card into FAT32 format2nd, After releasing the upgrade firmware http://..........com/otherbar1734686.htm and move it at the root of TF card3rd, Please ensure HD900 is turned off and then press Power & Volume+ button at the same time. HD900 will start to upgrade after 6seconds. Thank you !

As known,there are different apps available for different countries,also Chinese government blocks a lot of information from us . So when you have trouble installing DJI app at the first attempt, please enable location services(GPS etc) and restart the tablet ,it now works ok ,thank you!

Yes,it can work very well with them,we design it with DJI phantom 3/4 together!

Yes,it is on pre-sale now! Pre-sale time: 21st of June,2016 to 8th of August,2016!

Multipath occurs when part of the signal being broadcasted by the transmitter is reflected by a obstacle i.e. buildings, hills, trees. The reflected RF waves travel farther and arrive later in time than the direct RF wave.The reflected wave arrives at the receiver with a slight delay than the unreflected causing the wave signals to overlap, which confuses the receiver. The desired wave is combined...

It's all about preference and budget. To start up, a good LCD/LED monitor with sun-shade mounted on a camera tripod will work great. Flysight Black Pearl RC801 is the best option.Besides, you can share the flight with other people too. Just make sure the monitor is specific for FPV, and the screen doesn't go to a solid blue or black screen when you have poor signal or brief drop. Then later after ...

The abbreviation Hz is a unit used to measure frequency. In other other words, 1 hertz = 1 cycle per second, 1MHz megahertz is 1 million cycles per second, 1GHz Gigahertz is 1 billion cycles per second.The abbreviation W is a unit of measurement used to measure the amount of output power of a transmitter, and mW (milliwatt) is 1/1000 of a watt, 1000mW=1 Watt, 500mW=0.5 Watt

Even within the range of 200 meters (600’ feet) you will have some RF noise and inevitable video drops, which is very common when you have any analog transmitter in movement. We highly recommend the use of a high gain antenna with your receiver. It will not only increase the range but it will also decrease video drops considerably. The 8dBi antenna does a great job!

The best way to check the range of your FPV system is in the air, preferably with a spotter to avoid losing your RC model. Ground range check will give you very short ranges when compared to aerial.Keep the antennas for the receiver/transmitter in the upright position for optimized performance. - Install the transmitter as far as you can from any other electronics i.e. ESC, motor even camera. - Fo...

Range can be affected by many factors, such as how far the video transmitter is installed from all the other electronics, type and position of the antennas in use, the height of the receiver's antenna, heavy signal broadcasting around the area of operation, trees and buildings. High frequency signal such as 5.8 GHz can be affected by clouds or even high humidity in the air.As already briefly menti...

FPV stands for First Person View. In order to do FPV you will need a camera, transmitter, receiver, antennas, and a video display. These components are the "core" and the most important items responsible for quality and performance of an FPV system. The camera needs to be connected to the transmitter which will send wireless video to a receiver that will be connected to the video display.

All of our professional grade systems are made to order. We consider special requests and will do our best to provide for your custom needs.

A RTF is a platform assembled by professionals with years of experience building and maintaining aerial systems. It is a system that is tested and supported by Flysight, made from parts and components that will last and are proven to fly smoothly and reliably. If you choose to purchase an RTF, you will have the peace of mind in knowing that your system is truly professional grade.

If you have previous experience of RC models you can easily adapt to flying. These systems are built for stability and with practice can be easily learned. It is important to learn to fly confidently and safely. We offer many tools to help you be comfortable flying your copter, from flight simulators, videos and manuals.

1. Fly in the open space: please stay away from buildings, trees, high pressure lines and other obstacles, and keep away from the water, the crowd and the animals.2. Please keep small accessories and electronic products in the place where children can not reach.3.Please do not put any part of the model into the mouth, otherwise it will cause serious damage, and even death.4. Do not touch the rotat...

Please, take a picture of the damaged product and email images and a detailed message to sales..........com.cn,Flysight will show this to the carrier to discuss the solution and keep you informed of the process in time.

Your tracking number is provided on your email confirmation of your order being shipped,and your sales will also track it every day until you get your shipment.

Yes. You will receive an email confirmation once your order has shipped with the tracking number form your sales.

Once you have placed the order, you will be given shipping options on what carrier you would like,If the shipment requires additionally handling, please contact our sales.

If you can accept Flysight recommended carrier, Flysight will prefer to the safe way which can ship the batteries for you; also for Flysight designed battery, Flysight has applied MSDS certificate for smooth shipping,like the FSBP01.

You shall be responsible for the delivery and insurance, and the title of the Products and the risk of loss will be transferred from Flysight to you once the Products passed to the carrier.If requested, Flysight could use your repayment to pay for your appointed carrier.Flysight always offers the EXW price, so Flysight always advises you to buy shipping insurance to reduce the risk.

Yes. Please provide your account number in detail when you place your order. Please advise on what shipping method you require.Please offer your paid bill to us for month-checking,thank you.

You can use DHL,USP, FedEx and so on.generally,Flysight appoints official DHL as default carrier for your order, you can also appoint the agent DHL or other ways as your carrier;Flysight is responsible for telling the difference between official and agent DHL.

Yes, we offer promotions and discounts periodically through the year.Bigger quantity more discount!

Yes, we accept PayPal payments. Please make sure you are utilizing a Verified PayPal account to avoid any delay in your shipment.

Yes, we accept wire transfers from both international and domestic banks in USD&RMB. You will see bank information on the PI(Proforma Invoice) when completing your order. If you have additional questions, please e-mail sales..........com.cn.

Yes, Flysight offers OEM service on all products.Different OEM level needs meet different MOQ,and the delivery time also depends on the OEM requirements and quantity.

Usually, Flysight as a manufacturer makes standard material stock for each of our products,delivery time is only 3-7working days depending on the order quantity.

Usually, our M.O.Q is 50 units for each item,the biggest discount offered for this quantity.However,Flysight advises to test sample before batch order to make sure the quality first.

RTF stands for Ready To Fly. RTFs are assembled and tested by our professional staff to provide a completely built and functional system directly to you.

Please send an e-mail to sales..........com.cn or give us a call at 0086-755-66634279-908.