Product Name: Tws Earphone in-Ear Bluetooth Headphone I7 I7s I9 I9s I10 I11 I12 I14 I15 I16 I17 I18 I19 I20 Model NO.: i15 Distance version: 10m Specifications: HFP Color: White Characteristics: Support Music Function: Bluetooth Soundtrack: Dual Track Bluetooth Version: 5.0 Usage: Mobile Phone, Call Center, MP3 & MP4, Computer, Game Player, DJ Style: In-ear Trademark: Neutral Transport Package: Standard Carton Specification: 5 * 5 * 1.5mm Origin: China Product Description i15 Tws Earphone in-Ear Bluetooth Headphone I7 I7s I9 I9s I10 I11 I12 I14 I15 I16 I17 I18 I19 I20Specifications:Bluetooth version:5.0, support binaural callTransmission distance:10 metersBattery capacity:30mAhCharging box battery capacity:300mAhMusic time:2-3 hoursTalk time:4-5 hoursStandby time:90 daysCharging time:1-2 hours