High Sound Quality: This product adopts 3W, 4ohm speakers with SNR > 90dB to maintain high sound quality and clear bass. Four times the volume increase lets you enjoy music and audio at the same time.Compact mini design: The mini wireless speaker measures only 46 x 46 x 33mm , which is half the size of a credit card. It can be taken anywhere.Plug and Play: Built-in buttons and a 3.5mm auxiliary jack are designed for easy music playback on smartphones, iPads and computers. No need to worry about "lost Bluetooth connection" anymore.Energy saving and durable: Built-in 350mAh lithium battery, playing games does not consume mobile phone power and has long battery life. Once the battery is depleted, it can be fully charged via the micro USB port in just 45 minutes.Perfect compatibility: it works with any multimedia device with a 3.5mm jack, such as that: B. Mobile phones, tablets, MP3s, CD players, laptops. Just turn on the device and plug it directly to play music or audio video.