What's the top-selling product within Massage Chairs?

The top-selling product within Massage Chairs is the <a href = "https://www.homedepot.com/p/TITAN-Prestige-Series-Black-Faux-Leather-Reclining-3D-Massage-Chair-with-Bluetooth-Speakers-and-Heated-Seat-PRESTIGEBL/316140500" class="u__default-link"> TITAN Prestige Series Black Faux Leather Reclining 3D Massage Chair with Bluetooth Speakers and Heated Seat</a>.

What is the most common feature for Massage Chairs?

The most common feature for Massage Chairs is <a href = "https://www.homedepot.com/b/Furniture-Living-Room-Furniture-Massage-Chairs/Reclining/N-5yc1vZcf8wZ1z1v488" class="u__default-link"> reclining</a>.