Features:- Portable Bluetooth Speaker,built-in bluetooth 4.1 wireless transmission, working distance up to 10 meters.- Compatible with all Bluetooth devices such as smart phones, tablet PCs, iPOD ...- Built in Lithium Battery, support rechargeable battery 4500mAh- Support Emergency charging function, can charge mobile phone, smart watches...- Support Hands-free when answer calling with mic.- Support IP66 level waterproof protection, suit for camping outdoor- Support TF Card/ AUX in for play music.This speaker is a waterproof speaker and is protected against accidental water ingress for a rugged outdoor or indoor use. It is not designed for use as an underwater speakerSpecifications:Product name: S610 Bluetooth SpeakerBluetooth version: 4.1Lithium battery voltage:3.7vSpeaker Specification: 45mm, 4ohm 8w x 2 Battery capacity: 4500mAhNoise ratio: >80DBDistortion: THD=1%Transmission distance: 10 metersCharging voltage: 5v 0.5A-1.5AProduct size: 190mm*85mm*53mmpacking size: 205MM*100MM*65MMN。W:300GG。W:500GColors: Blue, orangeMaterial: ABS+plasticFunctions: Bluetooth, Handsfree, TF, Line in, Waterproof, Emergency chargingPackage List1 x Wooden Bluetooth Speaker1 x Micro USB Charging Cable1 x AUX Cable1 x Retail boxSpecification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 20.5cm * 10cm * 6.5cm / 8.07inch * 3.94inch * 2.56inch Qty per Carton 20 Carton Weight 11.50kgs / 25.35lb Carton Size 21cm * 52cm * 25cm / 8.27inch * 20.47inch * 9.84inch Loading Container 20GP: 976 cartons * 20 pcs = 19520 pcs40HQ: 2267 cartons * 20 pcs = 45340 pcs