W-king S9 Outdoor Waterproof Bluetooth Speaker Portable Wireless Handsfree mini Stereo Speaker Power Bank with 4000mAh Battery
-- IPX6 waterproof,Shockproof,Dustproof functions make it suitable for outdoors.
-- The built-in 4000mAh rechargeable battery, it also could be emergency power, up to 20-24 hours of playing time
-- Support TF card player, 3.5mm audio input
-- Bluetooth 4.0,hand-free call; stable signal and high-quality communication
-- 3.5mm audio output cable to connect smart phone, PC and other digital products.
-- Portable,convenient to carry when your are hiking, camping, cycling, nightly walks, etc.
Bluetooth Version: 4.0
Battery capacity: 3.7V/4000mAH
Charging Voltage: 5V±0.25V
Bluetooth distance: within 10M
Charging interface: USB interface
Charging time: About 5 hours
Size: 181x58x 73mm