Original sentence: The K-box Gel audio speaker from Kerchoonz Ltd, is composed of a small loudspeaker powered by an internal amplifier which when placed onto solid flat surfaces, walls or windows turns the surface into speakers or sound board.The K-box is powered by a built-in rechargable battery with up to 20 hours of playtime per charge
Edited sentence: The K-box Gel audio speaker is composed of a small loudspeaker powered by an internal amplifier which when placed onto solid flat surfaces, walls or windows turns the surface into speakers or sound board.The K-box is a product of Kerchoonz.The K-box is powered by a built-in rechargable battery with claims of 20 hours of playtime per charge