IPX5 Waterproof and Sweat-proof for workouts；. LAMA Wireless Neckband Headphones Features Magnetic Earbuds The lightweight silicone neckband is a comfortable fit;. [Bluetooth 5.4 & 3D Surround Sound]: These Bluetooth headphones use Bluetooth 5.4 technology, low power consumption, faster transmission speed, no delay in calls, strong anti-interference ability and a more stable signal.
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