Color:Blackker type:Bluetooth, OutdoorConnectivity technology:Bluetooth, USBSpecial feature:Wireless, Portable, BluetoothRecommended uses for productOutdoorWireless Version: Wireless 5.0 + EDRFM Frequency Range :87.5-108MHzBattery : Lithium BatteryAudio Format: Mp3Watts : 6WInput Voltage: DC5V 0.5-2AProduct Size: 18*4.3*6.3cmUSEHow to pair two bluetooth speakers with your phone?Turn both of them on and then long press Hands-free button of the two speakers about 2 seconds until you hear voice prompt;The blue indicator light will flash rapidly and after 5-7 seconds the lights will be always on if these two speakers have been connected to each other successfully;Use your mobile phone or other device to connect to SPEAKER 5.0 through Bluetooth and then you can listen to music from two speakers simultaneously.