New Pro90 Sports Bluetooth Earphones Industrial Style In Ear Ultra Long Endurance Bluetooth Earphones 5.3

Specification: Style: In-ear. Communication: Wireless. Wireless Type: Bluetooth-Compatible. Vocalism Principle: Dynamic. Control Button: Yes. Volume Control: Yes. Frequency Response Range: Hz. Bluetooth-Compatible Version: 5.3. Category: Earphones Headphones. Material: ABS. Product name: Bluetooth-Compatible headset. Model: PRO 90. Colour: Black. Material: ABS. Bluetooth-Compatible version: V5.3. Bluetooth-Compatible distance: 15M. Standard voltage: 3.7V. Audio channel system: stereo. Headphone type: semi-in-ear. Supported protocols: HFP/A2DP/HSP. Battery type: polymer lithium battery. Headphone battery capacity: 30mAh. Charging box battery capacity: 200mAh. Charging method: Charging box USB port charging, earphones magnetic charging. Headphone charging time: about 40 minutes. Charging box charging time: about 1.5 hours. Headphone battery life: about 3.5 hours. Bare metal weight: 26g. Packing size: 999931 MM/3.9x3.9x1.22inch. Gross weight: 50g. PRO 90 Wireless In Ear Headphone Waterp