This Bluetooth Speaker features a durable metal speaker body with a on on-trend fashion speaker grill. With an IPX5 Waterproof rating the speaker can withstand any condition. Plus if two speakers are purchased they can be synced to each other to create True Surround Sound. Built in Microphone and Music Controls. Bluetooth Working range is 33ft. Bluetooth Version 4.2. Playback time at max volume 8hrs. Charging time 3hrs.