HUAWEI ORIGINAL HANDSFREE 0178 Model : 0178 Manufacturer: Huawei Color : White Material : Plastic Wearing Method : In-ear Connectivity : Wired Function : Microphone, Volume Control, Music Control, Call Game Headset Cable Length : about 1.1m Compatible Platforms : Android, IOS (Only Support Iphone7 And Below Models) Headphone Jack

Speaker Diameter-10mm Impedance: 32+-15% Microphone: pcB+4015mi Sensitivity: 42+-3dB Frequency Response: 20-20000Hz Cord Length: 1.1~1.2m NEEL TEC One To One Replacement 6 Months Warranty

Model : RD 250 Bluetooth Version : V5.2 Voltage : 5V-0.5A Power : 5mm Charging Box Battery Capacity : 300mAh Headset Battery Capacity : 25mAh Play Time : About 6-7h (Volume 80%) Standby Time : About 80 Day Charging Box USB Charging : About 1h Charging Box Wireless Charging :