https://www.theverge.com/circuitbreaker/2018/4/30/17302608/lg-g7-thinq-boombox-speaker-phone

LG’s next flagship smartphone, the G7 ThinQ, is debuting in just a couple days, and another teaser has been dropped. Speaking with Engadget, LG says that the phone will have a Boombox Speaker that “increases the base sound level by more than 6dB with twice the amount of bass.”

According to LG, the Boombox Speaker will use a resonance chamber within the phone, which supposedly has more than 10 times the resonance space found in traditional smartphones. Additionally, bass can be further amplified by placing the phone on a solid surface, using the resulting surface vibrations to deliver sound.