Bitti-Gitti The Wooden Vibration Sound System-Fits Most Phones-No Power Needed

Bitti-Gitti The Wooden Vibration Sound System-Fits Most Phones-No Power Needed Measurements: Unit measures approximately 6 3/4" x 3 7/8" x 1 7/8". The slot is 3 1/8" x 1/2" Condition: Excellent used condition. Just slip your phone out of its case and slip it in the slot for amazing sound! Please see photos. From Manufacturer: The Wooden Sound System is a handcrafted smartphone amplifier made from prime-quality birchwood. It increases sound volume by an average of 25 dB's and widens tonal range. Winner of the German Design "Excellence in Product Design" Award 2018, it is designed by Bitti Gitti founder Erbil Sivaslioglu and handcrafted in our workshop. Birchwood's orthotropic structure widens tonal range for warmer sound. 7 layers of precisely cut rings provide amplification. Coated with flaxseed oil, the sound system is waterproof and shock resistant. It works independently with no need for batteries or external power source. As the Bitti Gitti team, we wish you many years of pleasure with your Wooden Sound System.