JBL BATTERY 400 t210 You can use the JBL

You can use the JBL Headphones app to customize their maximum volume and daily listening time and get daily or weekly reports on your child's listening activity

and deep bass

Make your viewing or gaming experience more immersive than ever before with the winning combination of JBL Multibeam™ technology and Virtual Dolby Atmos®

all easily controlled with the JBL PartyBox app

JBL BATTERY 400 t210 You can use the JBLKeep the party going twice as long with JBL Battery 400. Even the best parties have to end sometime, but your JBL PartyBox Stage 320 can keep the vibe going twice as long by having a spare JBL Battery 400 on hand. When your rechargeable battery is running out of juice, it takes just seconds to pop a fresh battery into the slot on the back panel. Each battery has enough power for up to 18 hours of playtime, which means you could keep the party going