The ESPERANZA RYTHM wireless Bluetooth speaker with impressive RGB LED backlight is the perfect solution for people looking for versatile audio equipment. It offers the ability to play music from smartphones, tablets and other devices with Bluetooth functionality, as well as from microSD cards. The speaker is equipped with an FM radio and a microphone port, which makes it perfect for karaoke. Remote control via remote control and solid sound power make the speaker suitable for various conditions - both indoors 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 Built-in USB A port AUX mini jack input Microphone input Maximum range: up to 10 m Built-in lithium polymer battery: 1800 mAh Frequency response: 280 Hz - 16 kHz Output power: 10W Charging voltage: 5V Charging time: 2.5 - 3.5 h Music playback time: up to 5 hours Dimensions: 185 x 150 x 398 [mm] The set includes: remote control, approx. 50 cm USB C charging cable