I7/I7s TWS wireless Bluetooth Stereo Headset with charge Box Earphone for IPhone

Specification:
Wireless Version: V4.2 + EDR
Support Agreement: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
Frequency: 2.4GHz
Impedance: 32 OHM
Transmission: class2
Output power: 30mW
Range: 33feet
Frequency response: 20-20000Hz
Talking Time: 3-4 hours
Charging time about 1 hour (power indicator charging: red light; full power: red light off ,blue light on)
Standby Time: 120 hours
Battery: 60mAh rechargeable Li battery
Operating voltage range: 3.0V-4.2V
Mitou sensitivity: -42dB
Product Size: Length 25MM* Width 15MM*High 35 MM
Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)
Compatible phone: compatible with almost all the Android, Apple, Microsoft, Saipan system with Bluetooth mobile phone

1 pairs earphones with charging box packaging included:
2 x Bluetooth Headphones (left and right earphones)
1 x Charging box
1 x USB Charging Cable
1 x User Manual

NOTE:
1. When calling , only the Left Channel Earbuds has Voice , This safety feature allows you to hear the traffic While driving.
2. When you receive this package and use the Earbuds at the first time, the working time may not be very long, because we test them before sending them out, That costs some battery. Please don't worry. Charge them and they will work as expected..

Highlight:
1.COMFORTABLE WEARING: Ergonomic design, secure fit, no troublesome wires from tangling or around your neck. Super mini earbud, ultra lightweight, only 10g, start enjoy your wireless life with this new Bluetooth headphone .
2.BLUETOOTH V4.1 WIRELESS TECHNOLOGY: It can connect with different devices simultaneously, would connect automatically with a phone paired previously. Ergonomically shaped mini earpod provide long time comfortable wearing.
3.STRONG SIGNAL: With built-in Mic, great for hands-free calling, listening to music, news, etc., connect seamlessly with all Bluetooth enabled devices up to 30 feet away.
4.GREAT BATTERY LIFE: The new and improved lithium polymer battery allows seamless enjoyment of music for up to 2 hours on a single charge and 80 hours of stand-by, only take 1 hours to fully charged, battery status displayed on IOS device.
5.EASY TO USE: Compatible with most Bluetooth enabled devices, such as Apple iPhone, Android Samsung, etc., pairing up just take a few seconds.