Product Name: Microphone I18 with Unique Package Model NO.: i18 Distance version: Class B Characteristics: Support Music Function: Bluetooth Soundtrack: Dual Track Usage: Mobile Phone, Call Center, MP3 & MP4, Computer, Game Player, Aviation, DJ Style: In-ear Power Input: DC 5V Charging Bin: 350 mAh Charging Time: Around 50 Minutes Call Time: 2.5 Hours Music Time: 2 Hours Frequency: 20Hz ~ 20kHz Bluetooth Distance: 10 Meters Trademark: Neutral Transport Package: Carton Origin: China HS Code: 8518301000 Product Description Specification:1.Bluetooth : V5.02.Chip: Jerry 69163. Charging time: 1 hour / Standby time: 100 hours4.Charging battery: 250MA / Headset battery: 35MA5. Call/music 2-3 hours6.Bluetooth distance 15 meters7. Frequency: 2.4G-3.2GHZ8. Support : HES/HSP/AVRCP/A2DFeatures:1. Supporting listening to songs and making calls2. Easy to carry, suitable for people of any age3. Caller number, last call back, power on, power off, disconnect the phone, low battery, etc.4. Compatibility: Support all mobile phones with Bluetooth function, tablet, notebook, etc. 5.Magnetic charging 6.Automatic pairing