Bluetooth Speaker Wireless Charging Portable Radio Creative Audio

Product information: Function: card, radio, call function, wireless charging, clock alarm, wireless bluetooth Applicable scenarios: desktop, home, mobile and portable, bedside Speaker unit: 40mm Connection method: Bluetooth connection Interface type: USB Frequency response range: 100HZ-20KHZ Output power: 3W Signal to noise ratio: ≥75dB Power supply mode: built-in lithium battery Channel: 2 Play time: 5 hours Expansion storage: 32GB Bluetooth protocol: 5.0 Number of speakers: 1 Effective dist