Estore009 via eBay offers the Adin 26-watt Vibration Speaker with USB Charger, model no. S8BT, forUS$63.99 with US$3.99 shipping to Singapore. Aside from other eBay sellers, that's the lowest total price we could find by US$22. It features Bluetooth 4.0, NFC, microphone, and auxiliary input and output.
- US$63.99 + US$3.99 shipping to Singapore.