BT-1 Wireless Bluetooth In-ear Headphone Sports Headset with Microphones, for Smartphone, Built-in Bluetooth Wireless Transmission, Transmission Distance: within 10m(Blue) Filter-For Dell Weight:55g

Weight:55g

so you can instantly rotate and share your vision

Wireless Frequency: 433MHz

One Package Size 34cm * 29cm * 3cm / 13

The bottom of the silicone is non-slip and not easy to slide

BT-1 Wireless Bluetooth In-ear Headphone Sports Headset with Microphones, for Smartphone, Built-in Bluetooth Wireless Transmission, Transmission Distance: within 10m(Blue) Filter-For Dell Weight:55g1. Headphone design, ergonomic structure, comfortable to wear. 2. Light and durable, easy to carry, close to your ear type, suitable for professional running or other strong sports, even not easy to fall. 3. Earphone connection, using the most advanced memory wire, linear automatic admission, not easy to be deformed. 4. Low power consumption, long standby and play. 5. Bluetooth wireless transmission, more freedom, more comfortable. 6. Using advanced