Elevate your medium-space comfort with this 12000 BTU smart split air conditioner, part of the SEER 21 high-efficiency series, tailored for US households. Combining WiFi connectivity and eco-friendly R32 refrigerant, it delivers efficient cooling, heating, and fan functions while cutting energy costs. Operating on 230V/60Hz power (dedicated circuit recommended), it’s perfect for 200-250 sq ft areas like medium bedrooms, living rooms, or home offices.Included in the package: 1×indoor unit, 1×outdoor unit, 1×YKR-T121E remote controller, 2×AAA batteries, 2×4m connecting pipes, 1×drain pipe, 1×power cable, 1×mounting plate, 1×pipe protection ring, 1×putty, 1×plastic strap, and 2×user manuals. Installation requires a certified contractor – the kit fits standard wall installations with a 5°-10° slanted wall hole for drainage, and connecting pipes support lengths from 9.8ft (3 m) to 65.6ft (20m), with additional refrigerant (0.172oz/ft) needed for pipes over 25ft (7.6m).Control comfort effortlessly via the WiFi app (scan QR code for download) or remote: set 24h auto on/off timers, activate sleep mode, and adjust airflow direction (up-down/left-right swing) for even distribution. The indoor unit’s force switch provides emergency operation (AUTO mode, 77°F/25°C) if the remote is lost. Safety features include proper grounding, overcurrent protection, anti-freeze function, and R32 refrigerant leak detection compatibility.12000 BTU split air conditioner, SEER 21 smart AC, WiFi enabled split AC, 230V split air conditioner, R32 refrigerant AC, medium room split AC, US home split air conditioner, cooling heating split AC, high-efficiency split AC