I really like the clean simplicity of the design for this Mini Koo Non-Electric Speaker. Essentially it’s just a wooden amplifier but a beautifully crafted one at that. It’s made from walnut and fits all iPhone sizes to increase the volume of your music without cords or electricity. Very elegant.
Bluetooth Speaker , Bekhic 3D HI-FI Bass Wireless Portable Bluetooth 4.0 Speaker Stereo with Built-in Microphone Handfree Calling [Bekhic German Technology]