JBL JBLPARTYBOXGOBAM-Z On-The-Go Portable Speaker – Certified Refurbished. From beach parties to festivals . the JBL PartyBox On-The-Go lets you see . hear and feel the beat. Turn it up loud with 100 watts of powerful JBL Pro Sound . synched to a dazzling light show. Access your favorite tunes with Bluetooth . USB . AUX and TWS (True Wireless Stereo) connectivity . grab a friend and sing your hearts out with the JBL wireless mics . or use the instrument input to play along. With a bottle opener . padded shoulder strap . rechargeable battery and IPX4 splash-proof protection . the JBL Party Box On-The-Go has everything you need to get the party started??and take it with you..