Product Name: True-Wireless Earphones with Charging Case, Bluetooth 5, 20 Hour Battery Life, Touch Control Earbuds, Graphene Enhanced Sound, Noise-Cancelling Microphones Model NO.: EB15 Distance version: Class B Specifications: Support Hsp / Hfp / A2dp/Avrcp Characteristics: Tws V5.0 Function: Bluetooth Soundtrack: Dual Track Bluetooth Version: 5.0 Usage: Mobile Phone, Call Center, MP3 & MP4, Computer, Game Player, Aviation, DJ Style: In-ear Power Input: DC 5V Charging Bin: 400 mAh Headphone Battery: Single Side 55 mAh Call Time: 5 Hours Music Time: 5 Hours Frequency: 20Hz ~ 20kHz Bluetooth Distance: 20 Meters Trademark: Neutral Transport Package: Carton Origin: China HS Code: 8517629400 Product Description Specification:1. Chipset: Jieli 6936B 5.0+EDR2. Function:Auto Power on / Pairing,Touch Control. Quick Pairing, Extremely stability, Purely Superior Sound3. Material: ABS+PC 4. Distance: 20-30 Meters 5. Speaker: 16Ω,10mm, 20-20kHz, 91.5dB±36. Battery: Polymer Lithium Battery, Earbuds (55mah), Charging case (400mah) 7. Playing time: Single: 5-6H ; Pairing Mod: 4-5H 8. Standby: Single 100H, Pairing Mod 60H 9. Charging: Earbuds 1H, Case 2H 10. Color: White/Black