Wireless headset ES24 Joyous sound V5.0 with 800mAh charging case 60mah earphones battery for 4 hours of calls / music1. Wireless specification: Wireless V5.0 network 1526P.2. Support protocol: Headset, Hands-free, A2DP, AVRCP.3. Earphone size: 23.8*21*23.5mm. Weight: 55g.4. Charging time: 1 hour (earphones), 2 hours (charging box).5. Battery capacity: 60mAh (earphones), 800mAh (charging box).6. Call / music time: 4 hours.7. Standby time: 120 hours.