This ESPERANZA KARAOKE SINGER portable Bluetooth speaker with RGB LED backlight is the perfect solution for music and entertainment lovers. With the ability to play from a variety of sources such as Bluetooth-enabled devices, microSD cards and AUX input, it provides maximum versatility. The built-in FM radio allows you to enjoy your favorite radio stations, and the dual microphone input makes it a perfect choice for karaoke. Remote control using a remote control makes using the speaker even more convenient, without the need to approach the device. Powerful sound and spectacular RGB LED lighting guarantee an unforgettable experience, both at home and outdoors. Built-in FM Radio FM radio frequency: 87.5 - 108 MHz Bluetooth profiles: A2DP, AVRCP, HFP, HSP Bluetooth version: 5.0 Bluetooth transmitter power: 3 dBm Bluetooth transmitter frequency: 2.402 - 2.480 GHz Built-in TFT card slot (microSD) for MP3/MP4 playback AUX mini jack input Microphone input 2 pcs. Maximum range: up to 10 m Built-in lithium polymer battery: 2400 mAh Frequency response: 280 Hz - 16 kHz Output power: 20W Charging voltage: 5V Charging time: 2.5 - 3.5 h Music playback time: up to 5 hours Dimensions: 230 x 220 x 410 [mm] The set includes: remote control, 50 cm USB C charging cable