This music note is embedded with an NFC chip that works with all NFC-enabled phones/tablets*** and is re-writable (with 1kb of data). The default setting is as follows: 1. Set media sound level to 10 (of 15) 2. Launch music app (on first use, it will ask you to select the music app of your choice) 3. Shuffle Next Song (by re-initiating the tag)
Note: Your phone screen must be unlocked before initiating the tag
Near field communication (NFC) is a set of ideas and technology that enables smartphones and other devices to establish radio communication with each other by touching them together or bringing them into proximity, typically a distance of 10 cm (3.9 in) or less. As with proximity card technology, near-field communication uses electromagnetic induction between two loop antennas located within each other's near field, effectively forming an air-core transformer... NFC involves an initiator and a target; the initiator actively generates an RF field that can power a passive target (an unpowered chip called a "tag"). Source: Wikipedia
Or in other words, the NFC tag is passive and does not require a battery or power source - ever.
***(NFC is NOT currently available on ANY iPhone or iPad devices. NFC is available on most android phones and tablets manufactured after 2013. Check the Wireless settings on your device to see if it is available)
Default Color is white. This material is paint-able and I've had the best results when using oil-paint markers. (Made from a 100% Biodegradable and recyclable organic corn-based plastic. 3d-printed in the USA)