HOTTU NB15 Voice Changer Neckband Bluetooth Wireless Earphones:

• Battery Endurance: Delivers up to 40 hours of playback on a single charge cycle.
• Charging Standard: Charges quickly over a USB Type-C port.
• Wireless Standard: Uses a stable Bluetooth 5.3 connection over a 10-meter operational radius.
• Acoustics & Build: Tuned for heavy bass output, features environmental noise cancellation (ENC) for clear calls, and is built with a sweatproof exterior.
• 40 Hours Playtime
• Voice Changer
• Bluetooth 5.3
• Fast Charging
• Magnetic Control .