Features 1.INCOMING CALL VOICE ANNOUNCEMENT: Bluetooth wireless earpiece has a voice announcement for incoming calls and can clearly identify the caller's number. It's easier to connect and safer to drive. 2.DUAL NOISE CANCELLATION SYSTEM: Bluetooth business earpiece has a built in dual noise reduction system that intelligently filters out noise and reduces interference during calls, making communication clearer. 3.COMFORTABLE TO WEAR: Wireless earpiece will not swell or become sore when worn for long periods of time, and sweating will not cause ear inflammation from blocked ear canals, so you can enjoy every run or ride. 4.LOW LATENCY: Bluetooth earpiece is equipped with an intelligent chip, low latency algorithm to increase the transmission rate by 50%, smoother viewing and gaming, stronger penetration, and more stable signal. 5.EASY TO CLEAN: Single bluetooth headset is designed with multiple processes to effectively prevent rain and sweat erosion. Easy to clean material, lightly wipe that clean as before, very convenient to use. specificationItem Type: Bluetooth Earpiece_x000D_ Material: ABS_x000D_ Standby Time: About 180 Hours_x000D_ Audio: DSP Voice Data Processing_x000D_ Operating Range: Approx. 5-10m / 16.4-32.8/Ft_x000D_ Built In Polymer Lithium Battery: 90mAh_x000D_ Support Protocol: HFP A2DP AVRCP PackageList1 x_x000D_ _x000D_ BluetoothEarpiece 1 x Instruction Manual 1 x Charging Cable