Key FeaturesModel: SK819BTBluetooth Frequency: 2.4GHzMaster Control Chip: AC6965EFrequency Response Range: 60HZ-15KHZBattery: Speaker-18650/1200MAH, Mic-14500/500MAH�DescriptionHavit SK819BT Mini Portable Karaoke Bluetooth Microphone SpeakerThe Havit�SK819BT�Mini Portable Karaoke Wireless Speaker`s compact size and sturdy design allow you to enjoy excellent music wherever you go. This chic speaker boasts an abundance of features that ensure superb sound quality and effortless operation. The sophisticated master control chip, AC6965E, in this speaker, ensures smooth operation and crisp, clear sound. Its Bluetooth 5.3 technology ensures uninterrupted playback and enables fast and dependable connections with compatible devices. Because of Bluetooth`s 2.4GHz frequency and -0.58dB power, you may listen to your favorite music wirelessly and with minimal interference. The Havit SK819BT is the ideal companion for outdoor adventures and poolside get-togethers thanks to its single-channel design and IPX6 waterproof classification. Its sturdy 18650/1200mAh battery ensures enduring use, and its TYPE-C USB charging connector ensures quick and efficient charging. The built-in microphone uses a 14500/500mAh battery to enhance your karaoke experience. The speaker has a 57mm diameter and a sensitivity of 85dB�3dB. It can generate powerful sound within a frequency response range of 60Hz�15kHz. With a minimal distortion of ?5% and a rated output power of 5W, the Havit SK819BT provides immersive sound quality for your music and karaoke sessions. Take advantage of a standby duration of up to 300 hours and up to 5 hours of music listening or 50% loudness calling. It just takes three hours for the speaker to charge fully. Not only that, but you may roam about freely and listen to your favorite music at a 10-meter (obstacle-free) Bluetooth connection range. The Havit SK819BT Mini Portable Karaoke Wireless�Bluetooth Speaker�is a fashionable and compact device that will function brilliantly whether you`re throwing a karaoke night with friends or just want to listen to music on the move.�