Charging Case,More magical than ever.the new Airdots combine intelligent design with breakthrough technology and crystal clear sound And up to 3 hours of talk time on a single charge. Automatic second connection bluetooth 5.0, the connection is more stable. 12h long battery life, with charging box. Double-ear multifunction button, anti-missing, summon voice assistant, voice control mobile phone. Comfortable to wear, self-adjusting, not easy to fall off.100% Original International Edition (inclusive of all customs fee and shipping) imported by RGMS ENTERPRISES. Specifications General Model Name True Wireless Earbuds Bluetooth 5.0 Headphones, Sports in-Ear Color Black Headphone Type In the Ear Inline Remote No Sales Package Manual Book, 1 Earbuds, Charging Case, USB Cable Connectivity Bluetooth Product Details Sweat Proof Yes Foldable/Collapsible No Deep Bass Yes Water Resistant Yes Monaural No Designed For Universal, Samsung, Huawei, HTC, ZTE, Motorola, APPLE, Xiaomi, Lenovo, SONY, LG, NOKIA, MI, VIVO, NOKIA Series Premium Indicators Yes Controls on-off Technology Used A new generation of Bluetooth 5.0, faster and more stable The headset has a built-in Bluetooth 5.0 chip to be called a new generation of headphones. Redmi AirDots is equipped with the latest Bluetooth 5.0 chip, the data transfer rate is up to 2 times compared with the previous generation, the connection is faster and more stable. Listening to songs and playing games are all smoother and smoother., DSP intelligent environment noise reduction When the material and tuning are the same, the larger the speaker unit size, the better the low frequency. The Redmi AirDots are equipped with a 7.2mm sound unit, which has a low-frequency dive and a medium-to-high frequency. In the compact design, we still equipped you with DSP intelligent environment noise reduction technology, you do not have to worry about the quality of the call, it can remove the ambient noise, the other party can clearly hear your voice. With Microphone Yes Sound Features Sensitivity 106 dBmW Impedance 32 ohm Maximum Power Input 100 mW Minimum Frequency Response 20 Hz Maximum Frequency Response 200 Hz Connectivity Features Bluetooth Range 10 m Headphone Power Source Battery Transmitter Power Source 300Mah Battery Type lithium-ion polymer battery Battery Life 12 hr Charging Time 2 Standby Time 12 hr Dimensions Width 4 mm Height 6 mm Depth 3.5 mm Weight 49 g Warranty Warranty Summary 10 days warranty against manufacturing defects only provided by the manufacturer from date of purchase. Warranty Service Type 10 days replacement Covered in Warranty Manufacturing defects Not Covered in Warranty No warranty for damage caused by humans.