2018 New Portable V8 Wireless Bluetooth Speaker Specification : Types of : Bluetooth Speaker Colour : black,blue,red,army green Connection method : Bluetooth connection Frequency Range : 100HZ-20KHZ Power supply : Built-in lithium battery Extended storage : 32GB Effective distance : 10 m Shell material : plastic Speaker adjustment method : button Physical dimension : 155 x 73 x 130mm Interface Type : USB Output Power : 8W Channel : 2 Bluetooth protocol : 4.1 Features : Voice prompt, card, radio, call function, NFC function Display : no Is there a radio function? : Have Product weight : 0.55 (KG) Battery capacity : 1200AMH Signal to noise ratio : ?75dB Play time : 6 hours Number of speakers : 2 Operation method : button Play format : MP3 Support format : TF card Box material : plastic