Form factor: In Ear Connectivity technology :Wireless Wireless communication technologies: Bluetooth Special features: Lightweight Material: Plastic Headphone jack: 3.5 mm Jack Noise control: Sound Isolation Ear placement: Open Ear Batteries : 1 Lithium Ion batteries required. (included) Package Dimensions : 15.4 x 10.2 x 3.6 cm; 70 Grams
