As you can see on the picture above, the GS520 Anvil RGB speakers are connected to a smartphone and are powered via the computer monitor display, making it a perfect setup for mobile gaming while sitting at your desk.
The power cord, which integrates the USB-A and 3.5mm connections, measures 1.8 meters long, while the cable that tethers the speakers together measures 70cm long (under a meter long); hence you can position the speakers 70cm apart, which works well for small desktops. While the cable isn't super long, you can separate the speakers long enough to achieve a wide soundstage and natural stereo sound separation.
The GS520 Anvil RGB speakers have a classic 2.0 channel stereo desktop speaker design with tall but compact speaker units, measuring 18cm high, 8.5cm wide and 10cm deep. The GS520 Anvil RGB speakers are easy to setup, simply plug them in, press the power button and you're good to go.

There are three control buttons front facing the right speaker unit and a touch control button on top for changing the led lighting from solid colors (green, red and blue) and two color changing effects. 

The control buttons light up but do not change color. Two of those buttons control the volume (up and down), while the other button controls several functions such as powering off the RGB lighting.
The GS520 Anvil RGB speakers are entirely made of hard plastic with a beveled design, metal mesh grilled, an L-shaped RGB strip and a chrome plastic accent Redragon logo, which is glued onto the speaker. The back of the speaker units has a plain matte finish with a recessed groove around it for styling.The base of the speakers has foam padded feet.
The right speaker weighs 390 grams and the left speaker weighs 367 grams. Total weight including the cabling is 758 grams. Each unit houses a 5-watt dynamic speaker driver, which works well at reproducing treble, midrange and bass without muddiness or distortion. 

The total RMS output is 10 watts, which is achieved when the GS520 Anvil RGB speakers are connected to a 5V/2A power source. The speakers need a minimum 5V/1A input power. You can buy the GS520 desktop speakers from amazon. Check out these Redragon reviews: Pandora2 H350 headset, Storm M808 mouse and Draconic K530 keyboard.

The open pockets measure 10cm wide and 13cm high. The rear compartment zip open ups via a single metal slider and, it's fully waterproof, thanks to the reverse coil design and thick rubbery coating on the seam.
The backside panel measures 48cm high, 29cm wide and, it has a slight diamond shape to it so, the middle section of the bag is wider than the top and bottom sections. The backside panel features a padded trolley sleeve, which doubles also as the backside padding of the backpack. The padding consists of two long split sections made with ridge/wavy closed cell foam padding covered with mesh fabric. The trolley sleeve pass-through has a 21cm long opening, while the grab handle on top is made of rugged webbing, measuring 17cm long, 1.8cm wide and 3mm thick.
The backside panel is firm and rigid so, it provides excellent stability when carrying a full load. The back padding is comfortable too, generating very little heat/sweat build up, thanks to the split padding design. Because of the height of the 21 litre MTW Backpack version, if you have a torso shorter than 46cm you should go for the 17 litre version since the 21 litre version of the MTW backpack is likely to overlap onto your rear-end, which is not ideal for a comfortable fit.
The MTW Backpack shoulder straps measure 46cm long, 6cm wide, 1cm thick and feature an s-shape design and mesh fabric covering. The shoulder straps don't have a ridge/wavy padding but, they are still comfortable, thanks to the firm but springy closed cell foam padding.
The shoulder straps have very good separation (8cm apart), which means the shoulder straps won't be rubbing against the sides of the neck, even if you have broad-shoulders. Adjusting the shoulder straps on the fly works extremely well, thanks to the flatter shape and metal construction of the ladder lock buckles, which allows the webbing strap to glide through without getting caught like it can sometimes happen with some plastic ladderlocks.
The Moment Travelwear backpack also features a detachable sternum strap, which is great when you don't want a strap across the chest. The sternum strap works as it should but, it cannot be slid down on the fly because of its "notched" design, which requires removing and manually clipping the sternum strap onto a different notch. Also, the notches holding the sternum clips in place are made of plastic. In contrast, most adjustable sternum straps tend to have a linear guide rail design for the sternum strap to glide on, making it easier to achieve a more gradual height adjustment on the fly.
The entire outer shell of the Moment Travelwear backpack is made of the same material; hence there is no reinforcement on the base of the backpack, which is ideal to prevent water ingress.There is only one side pocket, which is elasticated so, it can expand for larger items like a tripod or water bottle.
The Moment Travelwear MTW Backpack comes in three colorways, olive, black and clay. The olive color (seen pictured) works well as it's a neutral color plus, it has an army green vibe to it, which is currently trending. The MTW Backpack weighs 980 grams and can be easily compacted flat for storing inside a large suitcase for day trips. The outer shell of the MTW backpack is rugged, thanks to the denier (weight) of the yarn used, which is 600D recycled nylon with a water resistant coat. The MTW backpack is internally lined with bright stretch fabric similar to spandex/lycra/elastane fabric. The zippers are all YKK sliders with cord fabric pull tabs.
The MTW Backpack also comes with tech organizer bags, which double as packing cubes for tech gear. The organizer bags are add-ons so, you have to buy them separately. The names of these organizers are Tech Organizer, Tech Organizer Mini and Battery Organizer, all of which are designed to fit inside the MTW Backpack middle main compartment. The tech organizers use the same materials as the MTW backpack, including 600D recycled nylon (outer shell), 210D nylon oxlan (internal pockets), stretch mesh fabric (internal zip pouch) and stretch fabric (internal lining).
The Tech Organizer is the largest of the three tech organizers and the one to go for if you have to pick one since it comes bundled with the tech organizer mini at no extra cost. The tech organizer weighs 200 grams (empty) and measures 25cm long, 16cm wide and 9cm thick. The tech organizer features fabric hinges with 90-degree opening and an internal divider separating the organizer in two halves.
On one half, there are two open pockets and, on the other half there is a stretch mesh zip pocket with two small pockets inside it, measuring 8.5cm long and 6cm high. The internal divider is also functional, integrating three elastic holders on both sides, as well as a small elastic holder on top of the divider. The elastic holders measure 6cm wide approximately. The larger open pockets measure 10 cm high with a length of 9cm long and 12cm long respectively. The internal depth of the tech organizer is 8cm high.
The Battery Organizer weighs 130 grams and has a clamshell style opening with two stretch mesh zip pockets, a small elastic pen holder, two open pockets and four elastic holders of various lengths (4cm and 4.5cm long). The open pockets measure 7cm high and 10cm wide. The stretch mesh zip pockets measure 8.5cm wide and 21cm long and have an overlapping design (one on top of the other). External dimensions are 23cm long, 14cm wide and 5cm high. The internal height is 4cm high.
The Tech Organizer Mini weighs 75 grams and has a clamshell style opening. There is no stretch mesh zip pocket in this organizer other than pockets, a total of five pockets and a small elastic pen holder. The two pockets on the left side measure 11cm and 8.5cm long respectively. 

The height of the pockets is 8cm. The three pockets on the right side have various lengths (5cm and 5.5cm) with the same height (6.5cm). External dimensions are 22cm long, 13cm wide and 2cm high. The internal depth is 1cm high approximately. You can buy the MTW Backpack directly from Moment.