Built-in DSP intelligent bell canto chip to optimize wireless audio algorithm There are five preset sound modes, which make it more interesting and have an atmosphere to sing a different feeling Newly upgraded Bluetooth 5.3 technology is not only a K-song speaker, but also an independent player A variety of ambient light modes, cool and beautiful The dual-microphone version realizes the function of wireless duet, and one mobile phone and two microphones can easily chorus Large-caliber speakers+Dolby stereo to achieve a theater-like surround experience Specifications: Bluetooth pairing name: T97 Bluetooth version: V5.3+BR+EDR+BIE Microphone connection distance: unobstructed ≤8M Speaker: 52mm circular internal magnet Output power: 5W Charging input: DC 5V/1A Charging time: about 2 hours and 30 minutes Speaker net weight: 240g Microphone net weight: 70g Waterproof level: not waterproof Material ABS shell + nylon webbing mesh Bluetooth solution: JL AC7016C8 Bluetooth transmission distance: open and unobstructed ≧10M Supported audio formats: MP3/WAV Frequency response: 50Hz-20KHz Signal-to-noise ratio: 90B Speaker battery: 18650, 3.7V, 1500mAh Microphone battery: 500mAh Charging port: TYPE-C Music continuous playback time (100% volume): about 2-3 hours Standby time: about 30 days Speaker size: 93*98*92mm Microphone size: 136*37.2mm