MS EOS B515 wireless TWS headphones, ANC

EOS B515, Range: 10m, ANC, Chipset: JL6973A4, BT version: 5.1, Bluetooth audio protocol: HFP, HSP, A2DP, AVRCP, SPP, PBAP, TWS+, CVC8.0, Reception sensitivity: -90dBm, Battery life for of music: 4.5 hours, Battery life during talk time: 4 hours, Battery life of the headphone case: 12 hours, Charging time of the handset: 1 hour, Charging time of the charging case: 2 hours, Battery of the headphones: built-in lithium 3.7 V/25 mAh, Charging Case Battery: Built-in Lithium 3.7 V/230mAh, Siren Size = F13mm, Speaker Impedance: 32Ω±15%