Quantity: 50 Sets 
Each box includes:
* Set of I7s Earphones
* Charging Box
* Micro USB Cable
* Manual
* Retail Box

Features:
* Bluetooth version: 4.2
* Transmission distance: outdoor direct distance 10-18 meters
* Battery capacity: polymer lithium battery 50mah
* Battery capacity: 1000mah
* Listen to music time: 2.5 hours up/down/pause playback
* Call time: 2 hours
* Standby time: 130 hours
* Charging time: 1.5- 2 hours
* Bluetooth level: class2 and class3
* Frequency band: 2.4-2.485GHz
* Modulation process: GFSK
* Max. Transmitter power: 2DBm

Compatible with all Bluetooth enabled Android, iOS, Windows, and other platforms including:
* Apple iPhone X, 8 Plus, 7, 6, 6s, 5, 5s, 5c, SE
* Apple iPad Air 2, iPad Mini 4, iPad Pro
* Samsung Galaxy S6 Edge Plus, S7, S8
* Samsung Galaxy Note 8, 5, 4
* Galaxy Tablet
* Google Nexus
* HTC One
* Motorola Droid Turbo
* LG G5, G4, Flex 2
* Nokia
* Sony
* Xperia
* Much more