•Bluetooth-compatible chip: JL 7003 connection stability/signal enhancement / clear calls •Hall Switch: Spring hinge/ultra-low power consumption/subwoofer enhancements/master-slave switching •Accessories: Comes with 4 sets of ear caps comfortable to wear without swelling ears •500mAh Charging Case: With a large capacity charging case, long-term use Specifications: •Program: JL 7003 •Bluetooth-compatible version: 5.2 •Charging interface: Type-C •Music playback time: 5h •Speaker: Graphene speaker 13mm •Standby time: 15 days •Connection distance: 15m •Charging time: headphone charge about 1h, charging case charging 1h •Battery capacity: headphones 50mAh & charging case 500mAh •Waterproof rating: IPX5 •Shell material: ABS/rubber oil •Music time: 5h •Calling: 5h Package included: •1Pair x Headset •1 x Data Cable •1 x Charging Case •4Pairs x Ear Caps (1Pair Assembled) •1 x Certificate of Conformity •1 x Tips Card •1 x English and Chinese Manual •Other items not included