The Logitech Wireless Speaker Z515 uses 2.4GHz wireless record as good as has the span of 2-inch drivers, as good as the magnitude reply of 122Hz 20,000Hz. This wireless orator additionally boasts the battery which lasts for up to 10-hour. The Logitech Wireless Speaker Z515 is undiluted for laptop users who have been regularly on-the-go. The Logitech Wireless Speaker Z515 retails for $99.99 the pop. Each squeeze comes versed with the soothing transport case. [Logitech]