boAt Stone 1500, Powerful 50 Watt Bluetooth Speaker, with Thumping Passive Radiators, Upto 5 to 15 Hours of Playtime in Mids (i.e. in 50-60% Vol.), IPX 6 Water Resistant (Army Green, Stereo Channel)

Highlights:
• An Original boAt Stone Speaker
• Awesome Sound quality, Same as the new piece
• It's Working Condition is as good as new one
• Gently Used
• Perfectly Working
• Worth ₹9000
• Power Output(RMS): 50 W
• Bluetooth Version: 4.2
• Wireless music streaming via Bluetooth
• Easy Access Integrated Controls
• IPX6: Water and Shock Resistant
• TWS Feature: Connect 2 Stone 1500s at once
• Twin EQ Modes: Indoor and Outdoor

Note: to be on safer side, I mentioned the battery backup as low as possible, but it can give more than that backup,
And what u see on Google or WhatsApp battery backup company claim, is measured in 50-60% Volume only.