O-BOX Bluetooth 4.0 Noise Cancelling Sport Headphones Wireless Earphones Heart Rate Monitor Sweatproof Earbuds PS: It is normal of

PS: It is normal of slightly leaking gas when screwing on the canister

reduce losses

1 Brand: QCY Color: As in the picture Material: ABS

Combo RDA Triangle features:

0 Ports: 2 Micro SIM Card Slots

O-BOX Bluetooth 4.0 Noise Cancelling Sport Headphones Wireless Earphones Heart Rate Monitor Sweatproof Earbuds PS: It is normal ofProduct Features: BLUETOOTH HEADPHONES: Bluetooth 4. 0, super easy to pair with most of bluetooth device, iPhone 5 5s 6 6s 7, iPad, Samsung Galaxy, Android Smartphone WIRELESS EARBUDS with HEART MONITOR: Built in Heart Rate Monitor, manage your running rate and frequency, safer and more scientific way to do exercise Smart HEADSET with MIC: Clear and excellent quality sound, improve your experience in listening music or answer phone call. Easy and