3つで$99で pre-order 受付中。屋内測位のハードルが下がりますね。
Each tiny beacon has a built-in Bluetooth® 4.0 chip, also called a BLE (Bluetooth® low energy) — and low energy it really is. The beacon can run for up to two years on a single coin battery. All the hardware is placed into the soft silicone case which has a sticky backside, allowing it to be easily attached to any flat surface like wood, concrete, or glass.