• Bluetooth Low Energy (BLE)  5 Specifications
• Integrate MCU to execute Bluetooth protocol stack
• Postage stamp sized: 13* 26.9* 2mm
• Low power
• Class 1.5 support(high output power)
• The default UART Baud rate is 115.2Kbps
• UART, I2C, SPI, 12-bit ADC(200ks/S) interfaces.
• Bluetooth stack profiles: all BLE protocols.
• CE, FCC, IC Certificated.

• Bluetooth 4.2/4.1/4.0
• Cheapest Price Bluetooth Module
• FCC, CE, BQB Certified
• Internal MCU
• Class 1 (up to +13dBm)
• Bluetooth Low Energy Protocols
• Extensible Feature :HID
• UART , I2C , SPI , 12-bit ADC , PWM Hardware Interfaces
• Programmable Baud-Rate (Up to 921600bps)
• 22 General Purpose I/O Pins
• Size: 13mm*26.9mm*2.0mm
• Bluetooth End Product Qualified
• Customized Firmware
• Over-The-Air (OTA) Firmware Updates

DATASHEET

• 2.4-GHz RF Transceiver Compatible with Bluetooth Low Energy (BLE) 5.1
• Ultra-small Size 5.0mm X 5.4mm X 1.2mm
• Supports Multiple BLE Connections (Up to 3 Connections)
• Programmable Transmit Output Power from -19.5dBm to +2.5 dBm
• Operating Voltage: 1.1V to 3.6V
• Supports SPI, UART, I2C Interfaces

• Bluetooth v5.0/4.0/3.0/2.1/2.0/1.2/1.1, Class 1.5
• Postage stamp sized: 9.7*11.5*1.8mm
• Low power
• Support HSP, HFP, A2DP, AVRCP,PBAP,MAP,SPP,BLE profiles
• The default UART Baud rate is 115.2Kbps and can support from 1200bps up to 921Kbps
• UART, I2C, PCM/I2S, nine PIOs, two AIOs
• Audio interfaces: I²S/PCM and SPDIF
• Supports CSR's latest CVC technology for narrow-band and wideband voice
• Supports apt-X, apt-X HD,TWS
• CE, FCC, BQB, TELEC,IC

• Chipset: CSR 8670/8675;
• Bluetooth 5.0 dual-mode specifications
• Mini Size : 13*26.9*2.2mm ,Coverage up to 50m(164ft).
• Max Transmit Power: 9 dBm; Receive Sensitivity: -92 dBm.
• Audio Interfaces: Dual I2S Output  Audio Features, SBC and AAC Audio codec
• Support HFP,HSP, A2DP,PBAP, AVRCP, MAP,SPP,BLE profiles