• Running can't shake off upgrade stable: Stable and solidified even in sports such as running and fitness
• 10 days standby time: Fast charge for 1-hour polymer lithium battery
• Small and lightweight: We strive to make the experience lighter simple and lightweight
• Simple operation with one touch: One-click easy call answering turning on and off music control wonderful
• Bluetooth-compatible 5.0: BT 5.0 has a larger connection range and faster data transfer BT speed enhancement 

Specifications:

• Communication distance: more than 10 meters
• Talk time: 4 hours
• Standby time: 100 hours
• Music time: 4 hours
• Battery type: polymer battery
• Supported protocols: HEP\HSP\A2D\AVRCP
• Battery capacity: 50mAh
• Speaker material: copper ring 8mm
• Process material: ABS + food silicone ear caps
• Upgradeable version: V5.0