Receiving range：10 meters without obstacle
Driver Unit：2×φ40mm speaker
Sensitivity：105±5dB at 1KHz
Max output power：30mW
Built in Battery：300mAhUp to 15 hours music time
Changing time：≤2.5 hours
Talking time：About 18 hours
Standby time：About 240 hours
1 x Headphones
1 x USB Charging Cable
1 x 3.5mm Audio Cable
1 X ManualHi-Fi Sound Quality: Ultra -optimized version of Bluetooth 4.0 with Industry-Leading CSR8615 that consumes less energy and bring more stable connection. Ensuring you a better stream audio experience
Bass and Stereo Sound: High performance premium driver with natural and balanced audio spectrum to deliver the dynamic music listening and handsfree talking experience.
Wireless and wired Dual mode: Free switch to wireless or wired anytime, paired devices via Bluetooth for wireless used and can be used as wired headphones without battery consumption using the 3.5mm cable; Not only fit to enjoy music but also play games.Package include an AUX cable (4ft).
Adjustable & Comfortable Wearing: Over ear design, softly padded earmuff with memory foam cushions and expandable headband provides you total comfort.
With Rechargeable Battery: Charge your wireless headphones for 3.5 Hours & enjoy up to 15 hours of playtime, answer incoming calls right on your on-ear headphones & your music will automatically resume when you hang up