Tai Nghe Nhét Tai Thể Thao Bluetooth A4 2020 Hỗ Trợ Thẻ Tf

🌹affordable price🌹Excellent quality🌹quick spot delivery🌹good value for money🌹high cost performance🌹 A4 Neckband Bluetooth Earphones Sports In-ear Stereo Headset Support TF Card 1.Clear sound: Bluetooth headset with large dynamic coil, 14.2mm speaker, carbon fiber composite diaphragm, can smoothly transmit low frequency and clear mid-high frequency, with high-quality sound, accurately convey the music rhythm. AEC / NR noise reduction and echo elimination technology can filter out background noise, lossless sound quality, professional tone, suitable for calls, pop music, rock and so on 2.Bluetooth 5.0, stable connection: Using the latest chip and Bluetooth 5.0 core technology, the neckband Bluetooth headset has long-distance Bluetooth transmission function, stronger anti-interference ability, more stable signal, without any delay. Compatible with tablets, laptops, desktop computers, TVs and mobile phones 3.Support TF card: With TF slot, it can be used with TF card up to 64G, you can play your favorite music without connecting other devices. You can enjoy running and free sports without calling (please note: TF card is not included) 4.Ultra-large capacity, long-lasting battery: The Bluetooth headset has a large-capacity battery of 200mAh, which can be continuously played for nearly 30 hours when fully charged. The standby time of this Bluetooth headset takes about 260 hours, and it only takes 1.5-2 hours to fully charge. No need to worry about running out of battery power, suitable for any occasions such as business travel, travel, office, exercise, subway, video and call, etc. Specification: 1.Model: A4 2.Bluetooth version: 5.0 3.Effective distance: 10M 4.Continuous playback time: about 30h 5.Battery capacity: 200mAh 6.Charging time: 1-2 hours 7.Working voltage: 5V/1A Package included: 1 x Bluetooth Earphone 1 x Charging Cable 1 x Manual