ANKRs can be attached using the included key ring or the key ring can be removed and the ANKR can be hidden in a bag or wallet.
ANKRs communicate via Bluetooth Low Energy, but do not need to connect or pair in order to function thanks to ANKR's patent-pending technology.
ANKRs have a 250 foot range. Because ANKRs and Bluetooth use RF (radio frequencies) to communicate, the communication range can be impacted by environmental factors such as walls, people, water, etc.
An ANKRs battery lasts for about 6 months. They use a 2025 lithium coin cell battery which can be purchased here.