IPX7 waterproof, with lanyard, small and portable.
US-YC011 Waterproof Wireless Speakers with Lanyard -- YC Series
1. 40mm dual speakers, shocking bass 2. Bluetooth 5.0 solution, three-button talk/cut song 3. IPX7 waterproof, built-in call microphone 4. Power storage 2000mAh, wireless battery life 4 hours 5. It is easy to carry when going out, with its own lanyard and outer fabric