Power: 4R HD 3W Voltage: DC 5V Play Time: 5-7 hours Charging time: 2-3 hours Size: 71mm * 45mm Why You Choose Our Enceinte Bluetooth? --IPX5 waterproof,Rain Proof,Splash Proof,Shockproof,Dustproof --latest Bluetooth technology, compatible with most Bluetooth devices, included Iphone, Ipad, Macbook,Samsung etc and also compatible with echo dot series. --Built-in Mic ,Release your Hand for Personal Speakerphone. Multiple Connection Way --The wireless Enceinte Bluetooth support most bluetooth device and non-bluetooth device such as Micro SD/TF card,3.5mm AUX Line.You can enjoy music with bluetooth device or traditional non-bluetooth device. Superior Sound Quality --Having high quality loudspeakers and excellent bass. Just enjoy the music from a deceivingly small package. Perfect Size with High Capacity Battery --The size of the speaker is Ultra Portable, Ultra Lightweight.You can enjoy high quality music outdoors easitly, such as beach,BBQ,Pool,Camping. --The waterproof bluetooth speaker has high capacity battery. It can play about 4 hours of continuous use. Package includes: 1 x Bluetooth Speaker 1 x Charging Cable 1x 3.5mm AUX Audio Line 1 x Metal Carabiner 1 x User Manual