Review on 🎧 Portable Headphone Amplifier with Dual Output - Syba SD-DAC63093 - Bass Boosting - Standard Packaging by Jacob Morrison

I have a Moto X phone and RHA-MA750I I am not satisfied with the sound. It seems like it's very weak in the mid-tones. For example, many rock songs do not emphasize the vocals. It's hard to describe my displeasure, let's just say it sounded a bit harsh. This amp solved the problem. The sound became richer and warmer. There were no reviews for this product and I had many questions, it was a leap of faith to buy it, but I know the manufacturer Syba and have previously successfully purchased one of their products. The size is tiny and light. 5 cm long x 4.25 cm wide x 1 cm thick, probably weighs less than 3 ounces. charging port. Revain's description is wrong, it fits a micro USB cable, not a mini USB cable. I discovered this during my pre-purchase research and it was one of the main reasons for the purchase. Competitive devices in this price range use Mini USB3. Battery life. I left it on 3/4 for about 5 hours and the last 9 hours at max volume so it lasted over 13 hours. Much longer than specified by the manufacturer.4. Yes, I can make and receive calls. My control buttons are registered to my phone via the device. This bothered me because it's important for me to be able to pause music, make and take calls while using this amp5. Telephone signal interference. So far I haven't experienced any interference from Wi-Fi or 3G phones with the booster, no static electricity or noise.6. The volume is increased by exactly 10%. what i like about it 1. It amplifies and makes the sound richer, warmer.2. I like the analog volume control. Just a preference, but I don't like digital volume controls.3. It's very small and I carry it in my vest behind my phone.4. Long battery life5. Low battery indicator6. Bass Boost enriches music without distorting it.7. I carry it in my vest pocket with my phone in front, and this amp sits flush with my phone. Electromagnetic interference did not occur. negative1. It's more of a tone booster than a tone booster. I don't notice that the sound is significantly louder as a result. About 10% louder, which may be a deciding factor for some. If you're looking for an amp that boosts the bass a lot, this may not be the one for you.2. The included microphone cable to the phone feels a bit cheap. Very thin but reinforced at the ends so can't judge.3. Made of plastic, not metal. Long-term durability may not be that good. For the less than $40 price I paid I'm a happy camper. It did exactly what I wanted and made the music playing through my phone sound richer and fuller.