Important setting !!!! You hold the middle key for the radio, it opens, then you press the button on the far right twice, it goes into radio mode, you press the middle key once, you wait, it will automatically scan the channel, it will stop automatically, you do not plug the cable into the charging place and plug it into the socket for more channels, it acts as an antenna, you can get information from the support team.

Speaker output: 57mm (4hm, thd <1%) Speaker: 5w Material: Abs Bluetooth version: V5.0 Light setting: Yes Frequency response range: 100 hz-20khz Decibel: 90 db Product size: 250mm diameter: 102mm Battery capacity: 1200 mAh Battery charging time: About 2-3 hours Working time: 4-8 hours Charging input: 5v type-C Inputs: Sd card, usb, aux cable input Box contents: Shine,charging cable, user manual Weight: 350 grams Multiple connection: Yes Bluetooth distance: 10 meters