LOCOMO Strapya World Tomko Transceiver Speaker Microphone Walkie Talkie iPhone Intercom Compatible with any iPhone; Make a phone call and Play music; Supports Siri Continuous use time: about 15 hours (using alkaline batteries) Cord Length: Compressed 50cm (about time), Plug: 3.5mm This product is intended for iPhone. It may work with other models, but has only been tested with iPhone. Size: 3.15 x 2.65 x 0.8 / 7.8 x 6.6 x 2cm; Power: 2 x AAA battery (not included)