๐๏ธ
Japanese โService Chargeโ Button
Translates as meaning complimentary, or free of charge. For example, a drink that is given "on the house" to a regular customer.
Japanese โService Chargeโ Button was approved as part of Unicode 6.0 in 2010 under the name "Squared Katakana Sa" and added to Emoji 1.0 in 2015.