Just plug and play; the headphones are made of skin-friendly materials with a micro-SD slot, allowing more playtime. The standby time is a whopping 200 hours, perfect for light and heavy listeners and stylish and practical enough for the groovy. Specifications Battery Capacity: 350mAh Recharge Time: 2H Play Time: 12H at 70% Volume Talk Time: 13H Standby Time: 200H Micro SD Slot: 32GB Max (not included) Driver Size: Φ40mm Speaker Impedance: 32Ω ±15% Bluetooth: V5.3 EDR Transmission Distance: 10M Output Power: 30mW (MAX 50mW)
