Interface: Bluetooth v.5, pin code "0000"
Bluetooth frequency range: 2402 ... 2480 MHz
RF output power: 4 dBm
Supported profiles: HSP, HFP, A2DP and AVRCP
Playing time: up to 4 hours
Recharging time: up to 1 hour, USB Type-C port
Operation distance: up to 10 m in the open air
Speaker frequency response: 20 Hz - 20000 Hz
Battery: case 200 mAh; earbuds internal 30 mAh x 2 pcs, Li-Polymer
Net weight (whole set): 33 g