Bluetooth speaker AUX/USB/SD card inputs FM radio black KSC-606 Characteristics Model: KSC-606 Bluetooth 5.0 Chip: Jerry Battery capacity: 1200mAh, charging for about 2.5 hours Conversation/music duration: 6 hours Power mode: lithium battery Wireless transmission: 10M approx Audio Noise Ratio: ≥90dB Driver unit: 52mm Power: 5W Frequency response: 120hz-20khz Product size: 174*74*55mm Product weight: 320g Support Bluetooth, SD card, USB, aux, FM Black colour