EBS-906 Portable Bluetooth Neck Hanging Speaker Stereo Hands-free Calling Music Soundbox - Black •It is lightweight and flexible while remaining durable,comfortable to wear on the neck •Free your hands,a new design for a new user experience,good for cycling,housework,traveling,etc. •Built-in microphone with advanced signal processing,allowing for crystal-clear voice quality during phone calls •Support Bluetooth play/pause music,support TF card playback,support answering/hanging up calls •Suitable for smartphones,notebooks,tablets and other devices with Bluetooth function •Specification: •Bluetooth version: JL V5.0+EDR •Bluetooth protocol: RF5.0,BB5.0,LMP5.0,AVCTP1.4,GAVDP1.3,HFPV1.7,A2DPV1.3,AVRCPV1.6,SSP V1.2,etc •Material: ABS plastic + cloth mesh + silicone tube •Output power: MAX 2*3W •Response frequency: 2.4GHz-2.480GHz •Speaker unit: 36mm dual speakers,3W*2,internal magnetic impedance 4Ω •Signal-to-noise ratio: ≥80dB •Distortion: ≤3% •Sensitivity: -88dBm ±2dBm •Transmission power: support CLASS1/CLASS2/CLASS3 maximum adjustable 6dBm •Input voltage: DC5V •Audio Type: Dual Channel •Charging current: IN DC 5V 500mA ±10mA(When charging,the red light of the speaker is always on,and the red light is off when fully charged) •Working current: (Battery 3.7V 1KHZ 0dBm) average 600mA •Shutdown current: ≤50uA •Temperature range: -25℃ to +65℃ •Speaker battery: 600mAh,battery type polymer 802040(with protection board) •Charging interface: Type-C •Transmission distance: ≥10 meters (barrier-free) •Talk time: about 8 hours •Standby time: about 1200 hours •Bluetooth playback 100% volume (mobile phone/speaker is 100% volume) listening time: about 6~7 hours •Bluetooth playback 50~60% volume (mobile phone 50~60%/speaker 100% volume) listening time: about 13~14 hours Package included: •1 x Bluetooth Speaker •1 x Charging Cable •1 x English User Manual