Item Name: Wireless Earphones Material: ABS Chip: JieLi 6936 Bluetooth Version: 5.0 Effective Straight Distance: 10-15m Speaker: F6 High-quality Graphene Speaker, Speaker Diameter: 6mmEarphone Battery Capacity: 40mAh (Included)Charging Box Battery Capacity: 1500mAh (Included)Playback Time: Single Earphone: Maximum Volume for 4 Hours, Medium Volume for 5 Hours; Dual Earphones: Maximum Volume for 3.5 Hours, Medium Volume for 5 HoursStandby Time: 200 HoursCharging Time: Earphones for about 50 Minutes, Charging Box for about 1 HourFeatures: Bluetooth 5.0, In-Ear, LED Digital Display, StereoCharging Box Size: 4cm x 7cm x 3cm/2.76″ x 2.36″ x 1.18″ (Approx.)Specifications:Stereo sound effect, HiFi sound quality, bring you a new experience.It adopts advanced Bluetooth 5.0 transmission technology, faster and more stable connection.Comes with a charging box, large battery capacity, supports LED digital display, can charge you earphones, also your mobile phone.A nice gift for your friends or colleagues.Item Name: Wireless EarphonesMaterial: ABSChip: JieLi 6936Bluetooth Version: 5.0Effective Straight Distance: 10-15mSpeaker: F6 High-quality Graphene Speaker, Speaker Diameter: 6mmEarphone Battery Capacity: 40mAh (Included)Charging Box Battery Capacity: 1800mAh (Included)Playback Time: Single Earphone: Maximum Volume for 4 Hours, Medium Volume for 5 Hours; Dual Earphones: Maximum Volume for 3.5 Hours, Medium Volume for 5 HoursStandby Time: 200 HoursCharging Time: Earphones for about 50 Minutes, Charging Box for about 1 Hour Features: Bluetooth 5.0, In-Ear, LED Digital Display, Stereo Charging Box Size: 4cm x 7cm x 3cm/2.76″ x 2.36″ x 1.18″ (Approx.