1.Solution: rs7720 ipx7 waterproof 2.Bluetooth version:csr4.0+edr 3.Battery capacity:5200mah /7800mah optional 4.Playing time:18-25 hours 5.Snr:=60db 6.Transmission range: 40hz-19khz 7.Frequency range:15mm 1. Bluetooth speaker 2. Handsfree 3.Line-in 4.Powerbank "product size: 182*70*70mm Canton size: 227*116*91mm Net / gross weight::850g/pcs "
