Dear Mr Jerzy Jasnski Thanks interest in our bluetooth. we appreciate to get your inquired and asked for our bluetooth quotation.we specialized in bluetooth ,which is one of the largest OEM in shenzhen of china.withthe highly innovative design and best service after selling.based on credit , service for clients! we offer the high quality and competitiveprice for you! that is why our customers always satisfied with us!and love to deal business with us! we wish a long-term business relations with you!so we do not to quote you a unreasonable price .for the first business relations ,you could have a trial order ,if you feel our products is goodas your wish ,than you could have a large order!we try our best to comply with you and your satisfy is our best honour.if you have free time or be interesting with our company! pls visiting our company.wewill expecting your coming!if you need samples ,please let me know what should i assist you! and I Wwill prepareit for you!Here is the quotation for the bluetooth with the photo .pls find it.If you have any questions pls feel free to contact with me. Its my pleasure to assistyou! I am looking forward your earlier reply yours faithfully samTechnology: Bluetooth V2.0Frequency band: 2.40GHz ~ 2.48GHzPower class: class 2Broadcasting range of 10mcharging time:up to 2 hoursStandby time: up to 150 hoursTalk time: up to 5 hours producing area:CHINA