Amazon with Kinglucky has the Kinglucky ClipFree A20 Open-Ear Earbuds (Black) on sale for $28 - $4 off coupon (click checkbox) - 50% off with coupon code O2ZJFBKO at checkout = $9.87 with free shipping on $35+ or with Prime.

• 8 hour playtime per charge + additional 37 hours w/ charging case. 
• Bluetooth 6.0, noise reduction on calls, IP55 waterprooof rated