★【Quality assurance】Verkstar is the only official shop. Please make sure the store name is "Verkstar" before placing your order. Please note that any purchase from other than "Verkstar" cannot be guaranteed. For items purchased from "Verkstar" we will accept returns, exchanges, repairs and refunds if you are not satisfied with the product only within 12 months of the date of purchase. ★【Wireless Mode & Wired Mode】:Wireless Bluetooth connection to your smartphone (IOS & Android) or tablet, so you can easily enjoy karaoke anytime, anywhere. Of course, the audio cable can be connected with MP3 and MP4 players. It also support TF card, so you can store your favorite songs and listen to anytime and anywhere. (Note: TF card is not included. Useful for various occasions such as karaoke practice, karaoke conventions at home parties and outdoor events, year-end parties, New Years parties, after-parties, cherry blossom viewing, camping entertaining, and more. ★【Earphone Jack & Recording Function】 With an earphone jack, you can practice singing while concentrating listening to songs even in noisy areas. In addition, you can download the karaoke app on your smartphone and record while singing your favorite songs. Without going to the karaoke box, we were able to practice solo without having to go to a karaoke box. ★【Easy to Use & High Sound Quality】 The multi-function button can adjust bass, highs, echos, and playback volume. You can freely switch between previous and next song. The main unit is equipped with a high quality stereo speaker and echo function. You can get the sound you like by controlling your reverberation and adjusting the volume. The sound is 3D and realistic. ★【Long Playtime & Convenient Charging Method】: 5-6 hours of continuous playback. It is also convenient to charge. It can be charged via USB from a smartphone charger, PC, or mobile battery, and it can also be powered by USB.