Specifications:

• Active Noise-Cancellation: No
• With Microphone: Yes
• Waterproof: Yes
• Key function 1: 8GB MP3 Player
• Product name: wireless earphones,wireless bluetooth headset,mp3 player
• Volume Control: Yes
• Battery Capacity: 220mAh/3.7V
• Wireless Type: bluetooth
• Function: Sport
• Loseless Audio: WMA,MP3,FLAC,APE,WAV
• Resistance: 9Ω
• Operation range: 10m(33fts)
• Line Length: 0.6m
• Brand Name: RALYIN
• Communication: wireless
• Vocalism Principle: Dynamic
• Function: For Mobile Phone
• Bluetooth: 4.2
• Support APP: No
• Product name 1: wireless headphones,bluetooth earphone,bluetooth headphone
• Sensitivity: 95±3dB
• Frequency Response Range: 20-20000Hz
• Noise cancelling: Yes
• Vocalism Principle: Hybrid technology
• Style: Ear Hook
• Charging time: 1-2 hours
• Headphone Type: wireless headphones with built-in memory
• Memory: Built-in 8GB
• Standby time: 400 hours
• Control Button: Yes
• Charging port: Micro USB
• Is wireless: Yes
• Codecs: AAC
• Model Number: M2
• Key function 2: Bluetooth earphone
• Connectors: USB
• Shuffle play: Support
• Suit: For iphone xiaomi samsung huawei sony htc meizu
• Random play: Support
• Waterproof: IPX6
• Playing time: 8-10 hours
• Plug Type: wireless
• Adapter: Less than 1A
• Hands free: support
• Support Memory Card: Yes
• Color: Balck/Blue/Orange