Vocalism Principle: Balanced Armature

Volume Control: Yes

Brand Name: OEM

Model Number: Air pro 4

Style: In-ear.

Communication: Wireless

Use: Portable Media Player, Mobile Phone, Aviation, COMPUTER, Dj, Gaming, Sports, Audiophile, Travel, PROFESSIONAL, HEARING AID, For Internet Bar, For iPod, HiFi Headphone

Waterproof Standard: IPX-5

Active Noise-Cancellation: NO

Product name: Air pro 4

Charging time: 1-2 Hours

Music time: 3.5-4hours

Standby time: 120 Hours

Battery capacity: 200mAh

Working distance: 10-15 Meters

BT Version: Version 5.0+EDR

Item: Pro 4 earbuds

NOTE: This product is not to be confused with ORIGINAL APPLE AIRPODS.