An auxiliary input allows you to play other audio sources by connecting them through a simple audio connection like a 3.5mm jack, i.e for MP3 or portable DVD/CD player.
The device can connect to Wi-Fi.
With more USB ports, you are able to connect more devices.
Wi-Fi 4 (802.11n) is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors – a, b, and g.
802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability, and improved power consumption. It provides advantages for gaming and HD video streaming.
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
AirPlay allows wireless connection of Apple devices with external screens or speakers. You may stream computer screen, video and music from iOS devices, play games like on consoles or present your slideshows easily on your TV.
Ethernet is a local area network technology.
Lightning is a proprietary computer bus and power connector created by Apple Inc. It allows you to easily plug your iPhone 5, iPod Touch (5th gen.), iPod Nano (7th gen.), iPad (4th gen.), and iPad Mini into the device, play music and at the same time charge it.