Product information:  

Type: Bluetooth speaker
Connection mode: Bluetooth connection / 3.5mm audio hole
Interface type: USB
Battery capacity: 2000mha
Frequency response range: 20Hz-20KHz
Output power: 5W * 4
SNR: ≥ 70dB
Power supply mode: Built in lithium battery
Channel: 2
Duration: 6 hours
Extended storage: 32GB
Bluetooth protocol: 5.0
Number of horns: 4
Effective distance: 10M
Functions: Card insertion, Remote control, Radio, Voice prompt
Operation mode: Key
Display: None
Playback format: MP3, wma, WAV, FLC
Shell material: Metal + Plastic
Whether app is supported: no
Supported formats: Bluetooth, FM, TF, 3.5mm, U disk, RCA
Speaker adjustment mode: Key + remote control
Whether there is radio function: Yes
Box material: Metal + Plastic
Dimension: 550 * Φ 60mm (length * diameter)

Packing list: 

charging cable, RCA cable, manual, remote control