Model Number: BSPK-J600-S5I-J Brand Name: Tonstep or OEM Key Specifications/Special Features: Bluetooth speaker with 4000mAh power bank and touch buttonSupport Bluetooth/TF card/hands free/FM/power bank functionBluetooth version: V3.0 + EDRBluetooth range: 10-20mBuilt in battery capacity: 4000mAhMusic playing time: 15HOutput power: 3W*2Speaker unit: 40mmSNR: ≥90dbFrequency response: 100～18KHzSize: 165*60*35mmWith 3.5 stereo audio jack, suit to laptop, computer, MP3/MP4 and mobile phone.
Support iPhone, iPad and all telephones which have Bluetooth function
Power bank suit to charging mobile phone and iPad