120 Lumens On High 45 Lumens On Low Bluetooth Speaker Pairs Easily To Enabled Devices USB Output Capabilities To Charge Cellular Phones Or Tablets Audio Output Jack For The Ability To Stream Music For Up To 10 Hours Weather-resistant (ipx4) 3.7v and 1600mah Rechargeable Li-ion Battery Run Time: 4 Hours On High 40 Hours On Low 10 On Speaker