Wireless 9D Nosie Reduction Earbuds Headphone v5.1 AhaTech F9 TWS v5.1 Wireless Auto Pairing Earbuds Bluetooth 5.1 Headphones Fingerprint Touch Control with Wireless Pro Charging Case / IPX7 Waterproof / Sports Stereo Pro Earphones in-Ear / Built-in Mic Headset / Premium 9D Noise Reduction Deep Bass for Sports, Gym Running Riding, Work, Workouts (Black / White) ?NEW 5.1 VERSION?Upgrade Bluetooth to the 5.1 version which gives you more farther transmission distance, more stable signal and less power consumption.?SMART PAIRING & CONTROL?Pick up 2 earbuds from the charging case, they will connect to each other automatically, then enter the mobile phone Bluetooth setting to pair the earbuds. Compatible with iOS and Android systems. You can touch control buttons on the Bluetooth earbuds, which allow you to play and pause music, skip tracks, answer and hang up calls. You can activate the phone's voice control through the Bluetooth headset.?650H STANDBY TIME?With the Bluetooth 5.1 technology, you get 650H standby time,4-5H continuous playtime when earbuds fully charged. The charging case with a built-in >50mA/3.7V Li-battery provides 3 times full charge for the earbuds. You can also use the charging case to charge your phone. Never worry about running out of power.?INCREDIBLE STEREO MUSIC QUALITY?Superb listening experience with powerful bass and exceptional detail. Get an unrivaled 9D-stereo Sound Quality & Call Clarity. CV8.0 Intelligent Noise Reduction technology reduces ambient noise and echo, ensure that you don’t miss any part of your rhythm and enjoy music everywhere.?IPX7 WATERPROOF?The Bluetooth earbuds are resistant to sweat, water and rain. Ergonomically in-ear design. They are not easy to fall from the ears and stay firm in place, Perfect for Sports, running, driving, workout, gym, relaxation, traveling, etc. Multiple using modelsThe F9 TWS v5.1 Wireless Earbuds have a single mode and a share mode. F9 upgrades a single mode. The traditional headset single...