Amazon.com: W-KING Bluetooth Speaker, 50W Powerful Bluetooth Speaker Loud IPX6 Waterproof, Large Outdoor Portable Speaker Wireless for Deep Bass/ Bluetooth 5.0/Power Bank/40H Playtime/TF-Card/AUX/NFC/EQ (Black) : Electronics
Totally teardown the LuguLake Bluetooth Speaker | XDA Forums
Alpatronix Bluetooth Speaker 60W (80W Max), IPX6 Waterproof, Portable, Wireless, 8000mAh Power Bank, Handsfree, Shockproof, TWS, DSP, Stereo, Subwoofer, TF Card, NFC, AX500, Indoor & Outdoor – Black