In order to fit in well with market demand as lower cost but high quality, we launch BTM640 without antenna and BTM641 with antenna.

It is a cost effective ROM version with simple design and eay to use. It is based on CSR8640 ROM chip set which support Bluetooth V3.0 standard. The Embedded Kalimaba DSP Co-Processor support the advanced features such as echo cancellation, noise reduction and stereo audio(A2DP) communication. With advanced user interface it allows HFO or A2DP connections and secure simple pairing. SNR can up to 95dB. Support PCM, I2S or SPDIF.