Feature:1. V5.0+EDR high‑performance chip, ultra‑low power consumption, 2.1Mbps transmission rate, more stable connection signal, and more anti‑interference.2. The headset uses semi‑in‑ear design, which is light and comfortable, round and compact. Ergonomically designed to fit your pinna and reduce the weight of the earphone to make it more comfortable to wear.3. It is applicable for iOS and for systems, and supports devices such as mobile phones, and laptops.4. Smart fingerprint touch, multi‑function one‑key operation. Small and exquisite, easy to carry.5. Adopting call noise reduction technology to collect and filter environmental sounds to bring clear human voice to the other party. HiFi‑level sound quality brings you more comfortable music enjoyment.How to Use:2021-04-16 09:40:06Specification:Item Type: EarphoneBody Material: ABSEarplug Material: SiliconeColor: BlackBluetooth Version: V5.0+EDRSupport Protocol: A2DP1.3 /HFP1.6 /HSP1.2 /AVRCP1.6 /D11.3Signal Distance: Approx.10~15m/393.7~590.6inFrequency Response Range: 20-20KHzCharging Interface: Type-CCharging Voltage and Current: 5V, 1ACharging Time: 1 hourMusic Playing Time (full power): 3-4 hoursStandby Time: 72 hoursHeadphone Battery: 30mAhRechargeable Battery: 300mAhHow to Use:The name of this product is X16. After the charging compartment is opened, the headset is automatically paired. The first pairing needs to be paired manually, and the headset will automatically shut down when inserted into the charging compartment. Package List:2 x Earphone1 x Charging Box1 x Data Line8 x Earplug1 x Manual