This is a replacement LEFT speaker assembly for Macb00k Pro 15" A1707 2016 2017 and A1990 2018 2019 series laptops, and fix issues with sound output. An aging or malfunctioning speaker may have buzzing noises or cut out unexpectedly, restore your laptop's sound quality with this replacement part, NO soldering is required. Manufacturer Part Number(s): DTV648502 APH99080 Reference Compatible with Macb00k Pro 15" Models: for A1707 Late 2016 Mid 2017 - MacB00kPro13,3 A1707 Late 2016: MLH32LL/A* "Core i7" 2.6GHz 15" Touch EMC: 3072 - MacB00kPro13,3 A1707 Late 2016: MLH42LL/A* "Core i7" 2.7GHz 15" Touch EMC: 3072 - MacB00kPro13,3 A1707 Late 2016: MPTT2LL/A* "Core i7" 2.9GHz 15" Touch EMC: 3072 - MacB00kPro13,3 A1707 Mid 2017: MPTR2LL/A* "Core i7" 2.8GHz 15" Touch EMC: 3162 - MacB00kPro13,3 A1707 Mid 2017: MPTT2LL/A* "Core i7" 2.9GHz 15" Touch EMC: 3162 - MacB00kPro13,3 A1707 Mid 2017: BTO/CTO "Core i7" 3.1GHz 15" Touch EMC: 3162 for A1990 Mid 2018 Mid 2019 - MacB00kPro15,1 A1990 Mid-2018: MR932LL/A* (2.2 GHz Core i7) EMC: 3215 - MacB00kPro15,1 A1990 Mid-2018: MR942LL/A* (2.6 GHz Core i7) EMC: 3215 - MacB00kPro15,1 A1990 2019: MV902LL/A* (2.6 GHz Core i7-9750H) EMC: 3359 - MacB00kPro15,1 A1990 2019: MV912LL/A* (2.3 GHz Core i9) EMC: 3359 - MacB00kPro13,3 A1990 Mid 2019: BTO/CTO "Core i9-9880H" 2.3GHz 15" Touch EMC: 3359 - MacB00kPro13,3 A1990 Mid 2019: BTO/CTO "Core i9-9980HK" 2.4GHz 15" Touch EMC: 3359 What’s in the box 1x LEFT Speaker (NOTE: If your screen is facing you, this is the speaker on the left side of the device.)