Walk Audio Powerful & Stylish High Definition Wireless Headphones Providing Perfectly Balanced Sound with Enhanced Bass Response. Easily Connects To Any Bluetooth-Enabled Device To Allow You To Control Music Or Phone Calls Hands Free, Via The Built-In Microphone & In-Line Control. Maximum Comfort Is Achieved With High-Quality Padded Ear Cushions And Adjustable, Padded Headband. High-Quality 'Soft-Touch' Finish, In Stylish Rose Gold Colour. Made with trusound technology Bluetooth V4. 2 Output Power: 100Mw (X2) Transmission Range 10M Rechargeable Lithium Battery 200Mah Charging Time 2-3 Hours Playing Time 3-4 Hours Standby Time 160 Hours 200g item weight.