Computer Surround Dual-speaker Subwoofer Bluetooth Speaker, BS-28A Option:BS-28A Carton Size 68cm * 48cm

Carton Size 68cm * 48cm * 17cm / 26

40HQ: 5913 cartons * 40 pcs = 236520 pcs

Choose batteries from formal manufacturer

as well as more personalized debugging procedures

the phone can easily read the memory card

Computer Surround Dual-speaker Subwoofer Bluetooth Speaker, BS-28A Option:BS-28A Carton Size 68cm * 48cm1. Standby time: 240 hours 2. Bluetooth transmission distance: 10 meters 3. Output power: 5W x 2 4. Transmission frequency: 2. 5GHz 5. Supported audio formats: MP3 WMA WAV FLAC APE 6. Input modes: USB flash drive, TF card, 3. 5mm AUX 7. Charging: DC5V 1~2A micro USB 8. Speaker: 52. 5mm 4 5W 9. Transmission power used: 1. 49mW 10. Frequency response: 20Hz~20kHz 11. Signal to noise ratio: 80dB 12. Equipped with two 5W stereo speakers + dual sided bass