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For the JJRC H31 quadcopter transmitter issues such as no reaction, cannot control the drone, indicator flashing, this fixing guide can effectively solve these cases. The transmitter has no reaction even after installing battery. ● Please check whether the positive and negative terminals of battery are installed correctly. There is a mark in the battery case, follow the indication to install them. ● Check whether the batteries install tightly. If some of them are loosened, the electric circuit cannot be connected as well. ● Maybe some of the batteries already run out of the power. Simply change four new batteries to have a try. ● If the above conditions are eliminated, the most possible reason should be the transmitter is broken or the inside electric circuit/cables have something wrong. Please take it to an RC store to check and fix. The transmitter cannot control the drone (indicator is lit). ● The first condition might be the transmitter and the drone are not paired

If you are looking for a quick and easy upgrade to your home cinema, but do not have a big budget to spare, consider getting a TV box or a dongle. Today, we take a look at the best TV dongles — a much more portable plug & play option. Here we will have two types of dongles: the so-called mini TV boxes that come with their own operating systems and most of the needed apps pre-installed and the display link dongles that will let you cast your mobile, tablet or laptop screen onto your TV display. H96 Pro TV Dongle, $44.99 The H96 Pro is a small gadget with a big potential for improving your home entertainment. The dongle comes with 2GB RAM + 16GB ROM and sports the latest Android operating system — Android 7.1.1. Simply plug the dongle into your TV and you are all set with a great user-friendly interface on a big screen. Powered by the Amlogic S912 Octa-core ARM Cortex-A53 CPU, the dongle delivers a fast and smooth performance with a high-speed feedback. You will be able to watc

Few people love to spend their time cleaning — and more are looking for ways to do that quicker and more efficiently. Both the Dibea C17 2-in-1 Wireless Vacuum Cleaner and the Haier XShuai T370 Robotic Vacuum Cleaner would help us. But which vacuum cleaner is better? Let's find out. Haier XShuai T370 Robotic Vacuum Cleaner, $199.99 The Haier XShuai is your classic robot vacuum cleaner aiming to take most of the work out of the cleaning process. Thanks to the Epson gyroscope navigation, the robot can efficiently move around the room as well as memorize its layout. With the high-efficiency HEPA filter, the vacuum cleaner does not only pick up random debris but also helps rid the house of pet hairs and dust — the same type of filter is often used in air purifiers. The 2600mAh battery ensures up to two hours of cleaning time — and you won't have to worry about any disturbance to your peace of mind if you are in the room while the robot is cleaning, as the Nidec brushless motor e

With a wide choice of smartwatches available today, you definitely won’t be strapped for choice. How do you choose the smartwatch that fits you most? Read on for some useful tips in our smartwatch buying guide. First and foremost, it all depends on what you need the watch for — depending on that you may look for a device that is more suitable for sports, communication or, maybe, cool design. However, the things most of us are looking for in a smartwatch  are multifunctionality, the ability to work well with our smartphone and, in some cases, take on several of its functions. Let's take a closer look at the key factors taken into account when purchasing a smartwatch. Smartwatch operating system & compatibility Quick tip: above all, make sure the smartwatch you are considering is compatible with your smartphone. Smartwatch these days comes with many different operating systems. Surely, you have your Apple Watch with iOS and a large number of models with Android Wear. Ti

In this post, we take a look at a nice selection of home oil diffusers that can bring all the benefits of aromatherapy to your home. Oil Diffusers on DD4 An oil diffuser works by dispersing essential oils into a room. Oil Diffusers are an important part of aromatherapy - the practice of using volatile essential oils and herbs for various health benefits. But, there is more to aromatherapy than wonderful scents filling your home - it is said to positively influence your physical health providing pain relief, helping with respiratory conditions, elevating your mood, relaxation, improving sleep and more. You can choose single essential oils (popular options include eucalyptus, lavender, oregano, etc.) or mix and match several oils for your own custom aroma and multiple therapeutic options. These days, you have a wide selection of aroma diffusers to choose from with each model coming with a different design and feature set. Let's take a closer look on https://www.dd4.com/good